Home / 18,128.59-25,017.45-10,580.11

Finding the Fourth Proportional to 18,128.59, 25,017.45 and 10,580.11

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Solution

The fourth proportional to 18,128.59, 25,017.45 and 10,580.11 is: 14,600.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.59 : 25,017.45 = 10,580.11 : x
  2. Step 2: Convert to fraction form
    18,128.59/25,017.45 = 10,580.11/x
  3. Step 3: Cross multiply
    18,128.59x = 25,017.45 × 10,580.11
  4. Step 4: Simplify right side
    18,128.59x = 264,687,372.92
  5. Step 5: Solve for x
    x = 264,687,372.92/18,128.59
  6. Step 6: Final answer
    x = 14,600.55

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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.