Home / 18,412.28-27,613.76-5,264.72

Finding the Fourth Proportional to 18,412.28, 27,613.76 and 5,264.72

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Solution

The fourth proportional to 18,412.28, 27,613.76 and 5,264.72 is: 7,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.28 : 27,613.76 = 5,264.72 : x
  2. Step 2: Convert to fraction form
    18,412.28/27,613.76 = 5,264.72/x
  3. Step 3: Cross multiply
    18,412.28x = 27,613.76 × 5,264.72
  4. Step 4: Simplify right side
    18,412.28x = 145,378,714.55
  5. Step 5: Solve for x
    x = 145,378,714.55/18,412.28
  6. Step 6: Final answer
    x = 7,895.75

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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.