Home / 15,414.51-21,272.46-9,126.90

Finding the Fourth Proportional to 15,414.51, 21,272.46 and 9,126.90

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Solution

The fourth proportional to 15,414.51, 21,272.46 and 9,126.90 is: 12,595.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.51 : 21,272.46 = 9,126.90 : x
  2. Step 2: Convert to fraction form
    15,414.51/21,272.46 = 9,126.90/x
  3. Step 3: Cross multiply
    15,414.51x = 21,272.46 × 9,126.90
  4. Step 4: Simplify right side
    15,414.51x = 194,151,615.17
  5. Step 5: Solve for x
    x = 194,151,615.17/15,414.51
  6. Step 6: Final answer
    x = 12,595.38

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Double scale
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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.