Home / 15,454.17-21,323.16-10,427.72

Finding the Fourth Proportional to 15,454.17, 21,323.16 and 10,427.72

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Solution

The fourth proportional to 15,454.17, 21,323.16 and 10,427.72 is: 14,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.17 : 21,323.16 = 10,427.72 : x
  2. Step 2: Convert to fraction form
    15,454.17/21,323.16 = 10,427.72/x
  3. Step 3: Cross multiply
    15,454.17x = 21,323.16 × 10,427.72
  4. Step 4: Simplify right side
    15,454.17x = 222,351,835.38
  5. Step 5: Solve for x
    x = 222,351,835.38/15,454.17
  6. Step 6: Final answer
    x = 14,387.82

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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.