Home / 15,343.16-21,179.18-13,474.62

Finding the Fourth Proportional to 15,343.16, 21,179.18 and 13,474.62

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Solution

The fourth proportional to 15,343.16, 21,179.18 and 13,474.62 is: 18,599.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.16 : 21,179.18 = 13,474.62 : x
  2. Step 2: Convert to fraction form
    15,343.16/21,179.18 = 13,474.62/x
  3. Step 3: Cross multiply
    15,343.16x = 21,179.18 × 13,474.62
  4. Step 4: Simplify right side
    15,343.16x = 285,381,436.10
  5. Step 5: Solve for x
    x = 285,381,436.10/15,343.16
  6. Step 6: Final answer
    x = 18,599.92

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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.