Home / 10,331.84-15,490.56-5,134.16

Finding the Fourth Proportional to 10,331.84, 15,490.56 and 5,134.16

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Solution

The fourth proportional to 10,331.84, 15,490.56 and 5,134.16 is: 7,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.84 : 15,490.56 = 5,134.16 : x
  2. Step 2: Convert to fraction form
    10,331.84/15,490.56 = 5,134.16/x
  3. Step 3: Cross multiply
    10,331.84x = 15,490.56 × 5,134.16
  4. Step 4: Simplify right side
    10,331.84x = 79,531,013.53
  5. Step 5: Solve for x
    x = 79,531,013.53/10,331.84
  6. Step 6: Final answer
    x = 7,697.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.