Home / 14,478.05-21,724-8,157.97

Finding the Fourth Proportional to 14,478.05, 21,724 and 8,157.97

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Solution

The fourth proportional to 14,478.05, 21,724 and 8,157.97 is: 12,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.05 : 21,724 = 8,157.97 : x
  2. Step 2: Convert to fraction form
    14,478.05/21,724 = 8,157.97/x
  3. Step 3: Cross multiply
    14,478.05x = 21,724 × 8,157.97
  4. Step 4: Simplify right side
    14,478.05x = 177,223,740.28
  5. Step 5: Solve for x
    x = 177,223,740.28/14,478.05
  6. Step 6: Final answer
    x = 12,240.86

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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.