Home / 12,132.06-18,225.45-7,204.92

Finding the Fourth Proportional to 12,132.06, 18,225.45 and 7,204.92

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Solution

The fourth proportional to 12,132.06, 18,225.45 and 7,204.92 is: 10,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.06 : 18,225.45 = 7,204.92 : x
  2. Step 2: Convert to fraction form
    12,132.06/18,225.45 = 7,204.92/x
  3. Step 3: Cross multiply
    12,132.06x = 18,225.45 × 7,204.92
  4. Step 4: Simplify right side
    12,132.06x = 131,312,909.21
  5. Step 5: Solve for x
    x = 131,312,909.21/12,132.06
  6. Step 6: Final answer
    x = 10,823.63

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Double scale
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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.