Home / 12,031.60-18,040.56-9,559.12

Finding the Fourth Proportional to 12,031.60, 18,040.56 and 9,559.12

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Solution

The fourth proportional to 12,031.60, 18,040.56 and 9,559.12 is: 14,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.60 : 18,040.56 = 9,559.12 : x
  2. Step 2: Convert to fraction form
    12,031.60/18,040.56 = 9,559.12/x
  3. Step 3: Cross multiply
    12,031.60x = 18,040.56 × 9,559.12
  4. Step 4: Simplify right side
    12,031.60x = 172,451,877.91
  5. Step 5: Solve for x
    x = 172,451,877.91/12,031.60
  6. Step 6: Final answer
    x = 14,333.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.