Home / 15,429.39-21,292.52-8,714.69

Finding the Fourth Proportional to 15,429.39, 21,292.52 and 8,714.69

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Solution

The fourth proportional to 15,429.39, 21,292.52 and 8,714.69 is: 12,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.39 : 21,292.52 = 8,714.69 : x
  2. Step 2: Convert to fraction form
    15,429.39/21,292.52 = 8,714.69/x
  3. Step 3: Cross multiply
    15,429.39x = 21,292.52 × 8,714.69
  4. Step 4: Simplify right side
    15,429.39x = 185,557,561.08
  5. Step 5: Solve for x
    x = 185,557,561.08/15,429.39
  6. Step 6: Final answer
    x = 12,026.24

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Half scale
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Double scale
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Similar ratio
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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.