Home / 11,750.79-16,215.19-6,445.59

Finding the Fourth Proportional to 11,750.79, 16,215.19 and 6,445.59

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Solution

The fourth proportional to 11,750.79, 16,215.19 and 6,445.59 is: 8,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.79 : 16,215.19 = 6,445.59 : x
  2. Step 2: Convert to fraction form
    11,750.79/16,215.19 = 6,445.59/x
  3. Step 3: Cross multiply
    11,750.79x = 16,215.19 × 6,445.59
  4. Step 4: Simplify right side
    11,750.79x = 104,516,480.80
  5. Step 5: Solve for x
    x = 104,516,480.80/11,750.79
  6. Step 6: Final answer
    x = 8,894.42

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,751.79, 16,216.57 and 6,446.59
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.