Home / 11,902.32-16,428.60-7,186.92

Finding the Fourth Proportional to 11,902.32, 16,428.60 and 7,186.92

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Solution

The fourth proportional to 11,902.32, 16,428.60 and 7,186.92 is: 9,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.32 : 16,428.60 = 7,186.92 : x
  2. Step 2: Convert to fraction form
    11,902.32/16,428.60 = 7,186.92/x
  3. Step 3: Cross multiply
    11,902.32x = 16,428.60 × 7,186.92
  4. Step 4: Simplify right side
    11,902.32x = 118,071,033.91
  5. Step 5: Solve for x
    x = 118,071,033.91/11,902.32
  6. Step 6: Final answer
    x = 9,920.00

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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.