Home / 18,510.36-27,770.92-6,663.91

Finding the Fourth Proportional to 18,510.36, 27,770.92 and 6,663.91

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Solution

The fourth proportional to 18,510.36, 27,770.92 and 6,663.91 is: 9,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.36 : 27,770.92 = 6,663.91 : x
  2. Step 2: Convert to fraction form
    18,510.36/27,770.92 = 6,663.91/x
  3. Step 3: Cross multiply
    18,510.36x = 27,770.92 × 6,663.91
  4. Step 4: Simplify right side
    18,510.36x = 185,062,878.18
  5. Step 5: Solve for x
    x = 185,062,878.18/18,510.36
  6. Step 6: Final answer
    x = 9,997.80

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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.