Home / 11,750.75-16,215.92-6,445.45

Finding the Fourth Proportional to 11,750.75, 16,215.92 and 6,445.45

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Solution

The fourth proportional to 11,750.75, 16,215.92 and 6,445.45 is: 8,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.75 : 16,215.92 = 6,445.45 : x
  2. Step 2: Convert to fraction form
    11,750.75/16,215.92 = 6,445.45/x
  3. Step 3: Cross multiply
    11,750.75x = 16,215.92 × 6,445.45
  4. Step 4: Simplify right side
    11,750.75x = 104,518,901.56
  5. Step 5: Solve for x
    x = 104,518,901.56/11,750.75
  6. Step 6: Final answer
    x = 8,894.66

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Half scale
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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.