Home / 16,972.90-23,422.25-9,419.18

Finding the Fourth Proportional to 16,972.90, 23,422.25 and 9,419.18

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Solution

The fourth proportional to 16,972.90, 23,422.25 and 9,419.18 is: 12,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.90 : 23,422.25 = 9,419.18 : x
  2. Step 2: Convert to fraction form
    16,972.90/23,422.25 = 9,419.18/x
  3. Step 3: Cross multiply
    16,972.90x = 23,422.25 × 9,419.18
  4. Step 4: Simplify right side
    16,972.90x = 220,618,295.19
  5. Step 5: Solve for x
    x = 220,618,295.19/16,972.90
  6. Step 6: Final answer
    x = 12,998.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.