Home / 15,070.39-20,797.56-9,103.12

Finding the Fourth Proportional to 15,070.39, 20,797.56 and 9,103.12

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Solution

The fourth proportional to 15,070.39, 20,797.56 and 9,103.12 is: 12,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.39 : 20,797.56 = 9,103.12 : x
  2. Step 2: Convert to fraction form
    15,070.39/20,797.56 = 9,103.12/x
  3. Step 3: Cross multiply
    15,070.39x = 20,797.56 × 9,103.12
  4. Step 4: Simplify right side
    15,070.39x = 189,322,534.88
  5. Step 5: Solve for x
    x = 189,322,534.88/15,070.39
  6. Step 6: Final answer
    x = 12,562.55

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Half scale
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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.