Home / 15,184.34-22,785.16-12,125.78

Finding the Fourth Proportional to 15,184.34, 22,785.16 and 12,125.78

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Solution

The fourth proportional to 15,184.34, 22,785.16 and 12,125.78 is: 18,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.34 : 22,785.16 = 12,125.78 : x
  2. Step 2: Convert to fraction form
    15,184.34/22,785.16 = 12,125.78/x
  3. Step 3: Cross multiply
    15,184.34x = 22,785.16 × 12,125.78
  4. Step 4: Simplify right side
    15,184.34x = 276,287,837.42
  5. Step 5: Solve for x
    x = 276,287,837.42/15,184.34
  6. Step 6: Final answer
    x = 18,195.58

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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.