Home / 18,702.16-28,057.08-5,553.36

Finding the Fourth Proportional to 18,702.16, 28,057.08 and 5,553.36

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Solution

The fourth proportional to 18,702.16, 28,057.08 and 5,553.36 is: 8,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.16 : 28,057.08 = 5,553.36 : x
  2. Step 2: Convert to fraction form
    18,702.16/28,057.08 = 5,553.36/x
  3. Step 3: Cross multiply
    18,702.16x = 28,057.08 × 5,553.36
  4. Step 4: Simplify right side
    18,702.16x = 155,811,065.79
  5. Step 5: Solve for x
    x = 155,811,065.79/18,702.16
  6. Step 6: Final answer
    x = 8,331.18

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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.