Home / 16,982.12-23,438.12-9,430.90

Finding the Fourth Proportional to 16,982.12, 23,438.12 and 9,430.90

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Solution

The fourth proportional to 16,982.12, 23,438.12 and 9,430.90 is: 13,016.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.12 : 23,438.12 = 9,430.90 : x
  2. Step 2: Convert to fraction form
    16,982.12/23,438.12 = 9,430.90/x
  3. Step 3: Cross multiply
    16,982.12x = 23,438.12 × 9,430.90
  4. Step 4: Simplify right side
    16,982.12x = 221,042,565.91
  5. Step 5: Solve for x
    x = 221,042,565.91/16,982.12
  6. Step 6: Final answer
    x = 13,016.19

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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.