Home / 18,143.39-27,225.59-7,612.47

Finding the Fourth Proportional to 18,143.39, 27,225.59 and 7,612.47

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Solution

The fourth proportional to 18,143.39, 27,225.59 and 7,612.47 is: 11,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.39 : 27,225.59 = 7,612.47 : x
  2. Step 2: Convert to fraction form
    18,143.39/27,225.59 = 7,612.47/x
  3. Step 3: Cross multiply
    18,143.39x = 27,225.59 × 7,612.47
  4. Step 4: Simplify right side
    18,143.39x = 207,253,949.04
  5. Step 5: Solve for x
    x = 207,253,949.04/18,143.39
  6. Step 6: Final answer
    x = 11,423.11

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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.