Home / 18,127.04-27,191.57-4,979.12

Finding the Fourth Proportional to 18,127.04, 27,191.57 and 4,979.12

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Solution

The fourth proportional to 18,127.04, 27,191.57 and 4,979.12 is: 7,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.04 : 27,191.57 = 4,979.12 : x
  2. Step 2: Convert to fraction form
    18,127.04/27,191.57 = 4,979.12/x
  3. Step 3: Cross multiply
    18,127.04x = 27,191.57 × 4,979.12
  4. Step 4: Simplify right side
    18,127.04x = 135,389,929.16
  5. Step 5: Solve for x
    x = 135,389,929.16/18,127.04
  6. Step 6: Final answer
    x = 7,468.95

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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.