Home / 12,424.61-17,146.55-7,119.44

Finding the Fourth Proportional to 12,424.61, 17,146.55 and 7,119.44

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Solution

The fourth proportional to 12,424.61, 17,146.55 and 7,119.44 is: 9,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.61 : 17,146.55 = 7,119.44 : x
  2. Step 2: Convert to fraction form
    12,424.61/17,146.55 = 7,119.44/x
  3. Step 3: Cross multiply
    12,424.61x = 17,146.55 × 7,119.44
  4. Step 4: Simplify right side
    12,424.61x = 122,073,766.00
  5. Step 5: Solve for x
    x = 122,073,766.00/12,424.61
  6. Step 6: Final answer
    x = 9,825.16

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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.