Home / 10,935.91-15,089.79-6,459.04

Finding the Fourth Proportional to 10,935.91, 15,089.79 and 6,459.04

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Solution

The fourth proportional to 10,935.91, 15,089.79 and 6,459.04 is: 8,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.91 : 15,089.79 = 6,459.04 : x
  2. Step 2: Convert to fraction form
    10,935.91/15,089.79 = 6,459.04/x
  3. Step 3: Cross multiply
    10,935.91x = 15,089.79 × 6,459.04
  4. Step 4: Simplify right side
    10,935.91x = 97,465,557.20
  5. Step 5: Solve for x
    x = 97,465,557.20/10,935.91
  6. Step 6: Final answer
    x = 8,912.43

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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.