Home / 16,982.79-23,439.04-9,909.19

Finding the Fourth Proportional to 16,982.79, 23,439.04 and 9,909.19

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Solution

The fourth proportional to 16,982.79, 23,439.04 and 9,909.19 is: 13,676.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.79 : 23,439.04 = 9,909.19 : x
  2. Step 2: Convert to fraction form
    16,982.79/23,439.04 = 9,909.19/x
  3. Step 3: Cross multiply
    16,982.79x = 23,439.04 × 9,909.19
  4. Step 4: Simplify right side
    16,982.79x = 232,261,905.30
  5. Step 5: Solve for x
    x = 232,261,905.30/16,982.79
  6. Step 6: Final answer
    x = 13,676.31

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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.