Home / 15,431.46-23,146.43-5,436.71

Finding the Fourth Proportional to 15,431.46, 23,146.43 and 5,436.71

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Solution

The fourth proportional to 15,431.46, 23,146.43 and 5,436.71 is: 8,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.46 : 23,146.43 = 5,436.71 : x
  2. Step 2: Convert to fraction form
    15,431.46/23,146.43 = 5,436.71/x
  3. Step 3: Cross multiply
    15,431.46x = 23,146.43 × 5,436.71
  4. Step 4: Simplify right side
    15,431.46x = 125,840,284.53
  5. Step 5: Solve for x
    x = 125,840,284.53/15,431.46
  6. Step 6: Final answer
    x = 8,154.79

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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.