Home / 15,427.64-21,292.08-8,713.58

Finding the Fourth Proportional to 15,427.64, 21,292.08 and 8,713.58

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Solution

The fourth proportional to 15,427.64, 21,292.08 and 8,713.58 is: 12,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.64 : 21,292.08 = 8,713.58 : x
  2. Step 2: Convert to fraction form
    15,427.64/21,292.08 = 8,713.58/x
  3. Step 3: Cross multiply
    15,427.64x = 21,292.08 × 8,713.58
  4. Step 4: Simplify right side
    15,427.64x = 185,530,242.45
  5. Step 5: Solve for x
    x = 185,530,242.45/15,427.64
  6. Step 6: Final answer
    x = 12,025.83

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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.