Home / 18,613.11-27,915.89-5,461.95

Finding the Fourth Proportional to 18,613.11, 27,915.89 and 5,461.95

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Solution

The fourth proportional to 18,613.11, 27,915.89 and 5,461.95 is: 8,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.11 : 27,915.89 = 5,461.95 : x
  2. Step 2: Convert to fraction form
    18,613.11/27,915.89 = 5,461.95/x
  3. Step 3: Cross multiply
    18,613.11x = 27,915.89 × 5,461.95
  4. Step 4: Simplify right side
    18,613.11x = 152,475,168.08
  5. Step 5: Solve for x
    x = 152,475,168.08/18,613.11
  6. Step 6: Final answer
    x = 8,191.82

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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.