Home / 10,921.94-15,072.24-6,207.13

Finding the Fourth Proportional to 10,921.94, 15,072.24 and 6,207.13

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Solution

The fourth proportional to 10,921.94, 15,072.24 and 6,207.13 is: 8,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.94 : 15,072.24 = 6,207.13 : x
  2. Step 2: Convert to fraction form
    10,921.94/15,072.24 = 6,207.13/x
  3. Step 3: Cross multiply
    10,921.94x = 15,072.24 × 6,207.13
  4. Step 4: Simplify right side
    10,921.94x = 93,555,395.19
  5. Step 5: Solve for x
    x = 93,555,395.19/10,921.94
  6. Step 6: Final answer
    x = 8,565.82

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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.