Home / 18,008.91-27,013.37-4,861.28

Finding the Fourth Proportional to 18,008.91, 27,013.37 and 4,861.28

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Solution

The fourth proportional to 18,008.91, 27,013.37 and 4,861.28 is: 7,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.91 : 27,013.37 = 4,861.28 : x
  2. Step 2: Convert to fraction form
    18,008.91/27,013.37 = 4,861.28/x
  3. Step 3: Cross multiply
    18,008.91x = 27,013.37 × 4,861.28
  4. Step 4: Simplify right side
    18,008.91x = 131,319,555.31
  5. Step 5: Solve for x
    x = 131,319,555.31/18,008.91
  6. Step 6: Final answer
    x = 7,291.92

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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.