Home / 10,522.89-15,786.95-3,127.34

Finding the Fourth Proportional to 10,522.89, 15,786.95 and 3,127.34

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Solution

The fourth proportional to 10,522.89, 15,786.95 and 3,127.34 is: 4,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.89 : 15,786.95 = 3,127.34 : x
  2. Step 2: Convert to fraction form
    10,522.89/15,786.95 = 3,127.34/x
  3. Step 3: Cross multiply
    10,522.89x = 15,786.95 × 3,127.34
  4. Step 4: Simplify right side
    10,522.89x = 49,371,184.04
  5. Step 5: Solve for x
    x = 49,371,184.04/10,522.89
  6. Step 6: Final answer
    x = 4,691.79

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Similar ratio
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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.