Home / 12,279.52-18,423.82-7,352.60

Finding the Fourth Proportional to 12,279.52, 18,423.82 and 7,352.60

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Solution

The fourth proportional to 12,279.52, 18,423.82 and 7,352.60 is: 11,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.52 : 18,423.82 = 7,352.60 : x
  2. Step 2: Convert to fraction form
    12,279.52/18,423.82 = 7,352.60/x
  3. Step 3: Cross multiply
    12,279.52x = 18,423.82 × 7,352.60
  4. Step 4: Simplify right side
    12,279.52x = 135,462,978.93
  5. Step 5: Solve for x
    x = 135,462,978.93/12,279.52
  6. Step 6: Final answer
    x = 11,031.62

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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.