Home / 16,972.64-23,422.21-9,419.05

Finding the Fourth Proportional to 16,972.64, 23,422.21 and 9,419.05

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Solution

The fourth proportional to 16,972.64, 23,422.21 and 9,419.05 is: 12,998.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.64 : 23,422.21 = 9,419.05 : x
  2. Step 2: Convert to fraction form
    16,972.64/23,422.21 = 9,419.05/x
  3. Step 3: Cross multiply
    16,972.64x = 23,422.21 × 9,419.05
  4. Step 4: Simplify right side
    16,972.64x = 220,614,885.00
  5. Step 5: Solve for x
    x = 220,614,885.00/16,972.64
  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.