Home / 15,132.35-20,874.12-9,081.03

Finding the Fourth Proportional to 15,132.35, 20,874.12 and 9,081.03

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Solution

The fourth proportional to 15,132.35, 20,874.12 and 9,081.03 is: 12,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.35 : 20,874.12 = 9,081.03 : x
  2. Step 2: Convert to fraction form
    15,132.35/20,874.12 = 9,081.03/x
  3. Step 3: Cross multiply
    15,132.35x = 20,874.12 × 9,081.03
  4. Step 4: Simplify right side
    15,132.35x = 189,558,509.94
  5. Step 5: Solve for x
    x = 189,558,509.94/15,132.35
  6. Step 6: Final answer
    x = 12,526.71

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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.