Home / 10,442.19-15,642.42-6,279.92

Finding the Fourth Proportional to 10,442.19, 15,642.42 and 6,279.92

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Solution

The fourth proportional to 10,442.19, 15,642.42 and 6,279.92 is: 9,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.19 : 15,642.42 = 6,279.92 : x
  2. Step 2: Convert to fraction form
    10,442.19/15,642.42 = 6,279.92/x
  3. Step 3: Cross multiply
    10,442.19x = 15,642.42 × 6,279.92
  4. Step 4: Simplify right side
    10,442.19x = 98,233,146.21
  5. Step 5: Solve for x
    x = 98,233,146.21/10,442.19
  6. Step 6: Final answer
    x = 9,407.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.