Home / 18,837.72-28,255.75-5,689.69

Finding the Fourth Proportional to 18,837.72, 28,255.75 and 5,689.69

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Solution

The fourth proportional to 18,837.72, 28,255.75 and 5,689.69 is: 8,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.72 : 28,255.75 = 5,689.69 : x
  2. Step 2: Convert to fraction form
    18,837.72/28,255.75 = 5,689.69/x
  3. Step 3: Cross multiply
    18,837.72x = 28,255.75 × 5,689.69
  4. Step 4: Simplify right side
    18,837.72x = 160,766,373.35
  5. Step 5: Solve for x
    x = 160,766,373.35/18,837.72
  6. Step 6: Final answer
    x = 8,534.28

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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.