Home / 12,488.24-17,231.56-7,451.92

Finding the Fourth Proportional to 12,488.24, 17,231.56 and 7,451.92

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Solution

The fourth proportional to 12,488.24, 17,231.56 and 7,451.92 is: 10,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.24 : 17,231.56 = 7,451.92 : x
  2. Step 2: Convert to fraction form
    12,488.24/17,231.56 = 7,451.92/x
  3. Step 3: Cross multiply
    12,488.24x = 17,231.56 × 7,451.92
  4. Step 4: Simplify right side
    12,488.24x = 128,408,206.60
  5. Step 5: Solve for x
    x = 128,408,206.60/12,488.24
  6. Step 6: Final answer
    x = 10,282.33

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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.