Home / 18,677.52-28,017.80-5,350.72

Finding the Fourth Proportional to 18,677.52, 28,017.80 and 5,350.72

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Solution

The fourth proportional to 18,677.52, 28,017.80 and 5,350.72 is: 8,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.52 : 28,017.80 = 5,350.72 : x
  2. Step 2: Convert to fraction form
    18,677.52/28,017.80 = 5,350.72/x
  3. Step 3: Cross multiply
    18,677.52x = 28,017.80 × 5,350.72
  4. Step 4: Simplify right side
    18,677.52x = 149,915,402.82
  5. Step 5: Solve for x
    x = 149,915,402.82/18,677.52
  6. Step 6: Final answer
    x = 8,026.52

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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.