Home / 12,442.19-17,169.08-7,405.61

Finding the Fourth Proportional to 12,442.19, 17,169.08 and 7,405.61

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Solution

The fourth proportional to 12,442.19, 17,169.08 and 7,405.61 is: 10,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.19 : 17,169.08 = 7,405.61 : x
  2. Step 2: Convert to fraction form
    12,442.19/17,169.08 = 7,405.61/x
  3. Step 3: Cross multiply
    12,442.19x = 17,169.08 × 7,405.61
  4. Step 4: Simplify right side
    12,442.19x = 127,147,525.90
  5. Step 5: Solve for x
    x = 127,147,525.90/12,442.19
  6. Step 6: Final answer
    x = 10,219.06

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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.