Home / 12,442.56-17,169.36-7,065.20

Finding the Fourth Proportional to 12,442.56, 17,169.36 and 7,065.20

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Solution

The fourth proportional to 12,442.56, 17,169.36 and 7,065.20 is: 9,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.56 : 17,169.36 = 7,065.20 : x
  2. Step 2: Convert to fraction form
    12,442.56/17,169.36 = 7,065.20/x
  3. Step 3: Cross multiply
    12,442.56x = 17,169.36 × 7,065.20
  4. Step 4: Simplify right side
    12,442.56x = 121,304,962.27
  5. Step 5: Solve for x
    x = 121,304,962.27/12,442.56
  6. Step 6: Final answer
    x = 9,749.20

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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.