Home / 11,386.56-15,711.88-6,672.32

Finding the Fourth Proportional to 11,386.56, 15,711.88 and 6,672.32

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Solution

The fourth proportional to 11,386.56, 15,711.88 and 6,672.32 is: 9,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.56 : 15,711.88 = 6,672.32 : x
  2. Step 2: Convert to fraction form
    11,386.56/15,711.88 = 6,672.32/x
  3. Step 3: Cross multiply
    11,386.56x = 15,711.88 × 6,672.32
  4. Step 4: Simplify right side
    11,386.56x = 104,834,691.16
  5. Step 5: Solve for x
    x = 104,834,691.16/11,386.56
  6. Step 6: Final answer
    x = 9,206.88

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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.