Home / 18,613.44-25,714.80-13,889.52

Finding the Fourth Proportional to 18,613.44, 25,714.80 and 13,889.52

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Solution

The fourth proportional to 18,613.44, 25,714.80 and 13,889.52 is: 19,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.44 : 25,714.80 = 13,889.52 : x
  2. Step 2: Convert to fraction form
    18,613.44/25,714.80 = 13,889.52/x
  3. Step 3: Cross multiply
    18,613.44x = 25,714.80 × 13,889.52
  4. Step 4: Simplify right side
    18,613.44x = 357,166,228.90
  5. Step 5: Solve for x
    x = 357,166,228.90/18,613.44
  6. Step 6: Final answer
    x = 19,188.62

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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.