Home / 18,128.96-25,017.12-10,675.52

Finding the Fourth Proportional to 18,128.96, 25,017.12 and 10,675.52

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Solution

The fourth proportional to 18,128.96, 25,017.12 and 10,675.52 is: 14,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.96 : 25,017.12 = 10,675.52 : x
  2. Step 2: Convert to fraction form
    18,128.96/25,017.12 = 10,675.52/x
  3. Step 3: Cross multiply
    18,128.96x = 25,017.12 × 10,675.52
  4. Step 4: Simplify right side
    18,128.96x = 267,070,764.90
  5. Step 5: Solve for x
    x = 267,070,764.90/18,128.96
  6. Step 6: Final answer
    x = 14,731.72

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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.