Home / 12,557.17-18,839.23-10,211.38

Finding the Fourth Proportional to 12,557.17, 18,839.23 and 10,211.38

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Solution

The fourth proportional to 12,557.17, 18,839.23 and 10,211.38 is: 15,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.17 : 18,839.23 = 10,211.38 : x
  2. Step 2: Convert to fraction form
    12,557.17/18,839.23 = 10,211.38/x
  3. Step 3: Cross multiply
    12,557.17x = 18,839.23 × 10,211.38
  4. Step 4: Simplify right side
    12,557.17x = 192,374,463.81
  5. Step 5: Solve for x
    x = 192,374,463.81/12,557.17
  6. Step 6: Final answer
    x = 15,319.89

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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.