Home / 15,979.40-23,972.70-9,402.20

Finding the Fourth Proportional to 15,979.40, 23,972.70 and 9,402.20

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Solution

The fourth proportional to 15,979.40, 23,972.70 and 9,402.20 is: 14,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.40 : 23,972.70 = 9,402.20 : x
  2. Step 2: Convert to fraction form
    15,979.40/23,972.70 = 9,402.20/x
  3. Step 3: Cross multiply
    15,979.40x = 23,972.70 × 9,402.20
  4. Step 4: Simplify right side
    15,979.40x = 225,396,119.94
  5. Step 5: Solve for x
    x = 225,396,119.94/15,979.40
  6. Step 6: Final answer
    x = 14,105.42

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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.