Home / 12,839.14-17,718.04-7,173.90

Finding the Fourth Proportional to 12,839.14, 17,718.04 and 7,173.90

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Solution

The fourth proportional to 12,839.14, 17,718.04 and 7,173.90 is: 9,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.14 : 17,718.04 = 7,173.90 : x
  2. Step 2: Convert to fraction form
    12,839.14/17,718.04 = 7,173.90/x
  3. Step 3: Cross multiply
    12,839.14x = 17,718.04 × 7,173.90
  4. Step 4: Simplify right side
    12,839.14x = 127,107,447.16
  5. Step 5: Solve for x
    x = 127,107,447.16/12,839.14
  6. Step 6: Final answer
    x = 9,900.00

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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.