Home / 18,962.43-28,449.72-9,102.39

Finding the Fourth Proportional to 18,962.43, 28,449.72 and 9,102.39

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Solution

The fourth proportional to 18,962.43, 28,449.72 and 9,102.39 is: 13,656.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.43 : 28,449.72 = 9,102.39 : x
  2. Step 2: Convert to fraction form
    18,962.43/28,449.72 = 9,102.39/x
  3. Step 3: Cross multiply
    18,962.43x = 28,449.72 × 9,102.39
  4. Step 4: Simplify right side
    18,962.43x = 258,960,446.83
  5. Step 5: Solve for x
    x = 258,960,446.83/18,962.43
  6. Step 6: Final answer
    x = 13,656.50

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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.