Home / 12,380.00-17,084.13-7,001.72

Finding the Fourth Proportional to 12,380.00, 17,084.13 and 7,001.72

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Solution

The fourth proportional to 12,380.00, 17,084.13 and 7,001.72 is: 9,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.00 : 17,084.13 = 7,001.72 : x
  2. Step 2: Convert to fraction form
    12,380.00/17,084.13 = 7,001.72/x
  3. Step 3: Cross multiply
    12,380.00x = 17,084.13 × 7,001.72
  4. Step 4: Simplify right side
    12,380.00x = 119,618,319.91
  5. Step 5: Solve for x
    x = 119,618,319.91/12,380.00
  6. Step 6: Final answer
    x = 9,662.22

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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.