Home / 15,474.54-21,347.10-10,432.38

Finding the Fourth Proportional to 15,474.54, 21,347.10 and 10,432.38

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Solution

The fourth proportional to 15,474.54, 21,347.10 and 10,432.38 is: 14,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.54 : 21,347.10 = 10,432.38 : x
  2. Step 2: Convert to fraction form
    15,474.54/21,347.10 = 10,432.38/x
  3. Step 3: Cross multiply
    15,474.54x = 21,347.10 × 10,432.38
  4. Step 4: Simplify right side
    15,474.54x = 222,701,059.10
  5. Step 5: Solve for x
    x = 222,701,059.10/15,474.54
  6. Step 6: Final answer
    x = 14,391.45

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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.