Home / 18,780.48-25,918.38-10,397.52

Finding the Fourth Proportional to 18,780.48, 25,918.38 and 10,397.52

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Solution

The fourth proportional to 18,780.48, 25,918.38 and 10,397.52 is: 14,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.48 : 25,918.38 = 10,397.52 : x
  2. Step 2: Convert to fraction form
    18,780.48/25,918.38 = 10,397.52/x
  3. Step 3: Cross multiply
    18,780.48x = 25,918.38 × 10,397.52
  4. Step 4: Simplify right side
    18,780.48x = 269,486,874.42
  5. Step 5: Solve for x
    x = 269,486,874.42/18,780.48
  6. Step 6: Final answer
    x = 14,349.31

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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.