Home / 18,331.76-27,490.60-6,642.16

Finding the Fourth Proportional to 18,331.76, 27,490.60 and 6,642.16

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Solution

The fourth proportional to 18,331.76, 27,490.60 and 6,642.16 is: 9,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.76 : 27,490.60 = 6,642.16 : x
  2. Step 2: Convert to fraction form
    18,331.76/27,490.60 = 6,642.16/x
  3. Step 3: Cross multiply
    18,331.76x = 27,490.60 × 6,642.16
  4. Step 4: Simplify right side
    18,331.76x = 182,596,963.70
  5. Step 5: Solve for x
    x = 182,596,963.70/18,331.76
  6. Step 6: Final answer
    x = 9,960.69

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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.