Home / 11,389.60-15,711.33-6,672.97

Finding the Fourth Proportional to 11,389.60, 15,711.33 and 6,672.97

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Solution

The fourth proportional to 11,389.60, 15,711.33 and 6,672.97 is: 9,205.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.60 : 15,711.33 = 6,672.97 : x
  2. Step 2: Convert to fraction form
    11,389.60/15,711.33 = 6,672.97/x
  3. Step 3: Cross multiply
    11,389.60x = 15,711.33 × 6,672.97
  4. Step 4: Simplify right side
    11,389.60x = 104,841,233.75
  5. Step 5: Solve for x
    x = 104,841,233.75/11,389.60
  6. Step 6: Final answer
    x = 9,205.00

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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.