Home / 18,154.13-27,231.88-5,007.50

Finding the Fourth Proportional to 18,154.13, 27,231.88 and 5,007.50

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Solution

The fourth proportional to 18,154.13, 27,231.88 and 5,007.50 is: 7,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.13 : 27,231.88 = 5,007.50 : x
  2. Step 2: Convert to fraction form
    18,154.13/27,231.88 = 5,007.50/x
  3. Step 3: Cross multiply
    18,154.13x = 27,231.88 × 5,007.50
  4. Step 4: Simplify right side
    18,154.13x = 136,363,490.42
  5. Step 5: Solve for x
    x = 136,363,490.42/18,154.13
  6. Step 6: Final answer
    x = 7,511.43

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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.