Home / 15,719-23,578.78-5,331.02

Finding the Fourth Proportional to 15,719, 23,578.78 and 5,331.02

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Solution

The fourth proportional to 15,719, 23,578.78 and 5,331.02 is: 7,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719 : 23,578.78 = 5,331.02 : x
  2. Step 2: Convert to fraction form
    15,719/23,578.78 = 5,331.02/x
  3. Step 3: Cross multiply
    15,719x = 23,578.78 × 5,331.02
  4. Step 4: Simplify right side
    15,719x = 125,698,947.76
  5. Step 5: Solve for x
    x = 125,698,947.76/15,719
  6. Step 6: Final answer
    x = 7,996.62

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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.