Home / 12,488.76-18,757.44-9,188.82

Finding the Fourth Proportional to 12,488.76, 18,757.44 and 9,188.82

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Solution

The fourth proportional to 12,488.76, 18,757.44 and 9,188.82 is: 13,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.76 : 18,757.44 = 9,188.82 : x
  2. Step 2: Convert to fraction form
    12,488.76/18,757.44 = 9,188.82/x
  3. Step 3: Cross multiply
    12,488.76x = 18,757.44 × 9,188.82
  4. Step 4: Simplify right side
    12,488.76x = 172,358,739.82
  5. Step 5: Solve for x
    x = 172,358,739.82/12,488.76
  6. Step 6: Final answer
    x = 13,801.11

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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.