Home / 12,739.92-17,589.66-9,750.42

Finding the Fourth Proportional to 12,739.92, 17,589.66 and 9,750.42

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Solution

The fourth proportional to 12,739.92, 17,589.66 and 9,750.42 is: 13,462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.92 : 17,589.66 = 9,750.42 : x
  2. Step 2: Convert to fraction form
    12,739.92/17,589.66 = 9,750.42/x
  3. Step 3: Cross multiply
    12,739.92x = 17,589.66 × 9,750.42
  4. Step 4: Simplify right side
    12,739.92x = 171,506,572.66
  5. Step 5: Solve for x
    x = 171,506,572.66/12,739.92
  6. Step 6: Final answer
    x = 13,462.14

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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.