Home / 18,925.04-28,387.56-8,539.76

Finding the Fourth Proportional to 18,925.04, 28,387.56 and 8,539.76

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Solution

The fourth proportional to 18,925.04, 28,387.56 and 8,539.76 is: 12,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.04 : 28,387.56 = 8,539.76 : x
  2. Step 2: Convert to fraction form
    18,925.04/28,387.56 = 8,539.76/x
  3. Step 3: Cross multiply
    18,925.04x = 28,387.56 × 8,539.76
  4. Step 4: Simplify right side
    18,925.04x = 242,422,949.39
  5. Step 5: Solve for x
    x = 242,422,949.39/18,925.04
  6. Step 6: Final answer
    x = 12,809.64

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Similar ratio
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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.