Home / 18,909.60-28,326.17-9,536.58

Finding the Fourth Proportional to 18,909.60, 28,326.17 and 9,536.58

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Solution

The fourth proportional to 18,909.60, 28,326.17 and 9,536.58 is: 14,285.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.60 : 28,326.17 = 9,536.58 : x
  2. Step 2: Convert to fraction form
    18,909.60/28,326.17 = 9,536.58/x
  3. Step 3: Cross multiply
    18,909.60x = 28,326.17 × 9,536.58
  4. Step 4: Simplify right side
    18,909.60x = 270,134,810.14
  5. Step 5: Solve for x
    x = 270,134,810.14/18,909.60
  6. Step 6: Final answer
    x = 14,285.59

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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.