Home / 11,805.13-16,291.10-6,427.54

Finding the Fourth Proportional to 11,805.13, 16,291.10 and 6,427.54

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Solution

The fourth proportional to 11,805.13, 16,291.10 and 6,427.54 is: 8,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.13 : 16,291.10 = 6,427.54 : x
  2. Step 2: Convert to fraction form
    11,805.13/16,291.10 = 6,427.54/x
  3. Step 3: Cross multiply
    11,805.13x = 16,291.10 × 6,427.54
  4. Step 4: Simplify right side
    11,805.13x = 104,711,696.89
  5. Step 5: Solve for x
    x = 104,711,696.89/11,805.13
  6. Step 6: Final answer
    x = 8,870.02

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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.