Home / 12,439.72-17,166.18-6,849.64

Finding the Fourth Proportional to 12,439.72, 17,166.18 and 6,849.64

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Solution

The fourth proportional to 12,439.72, 17,166.18 and 6,849.64 is: 9,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.72 : 17,166.18 = 6,849.64 : x
  2. Step 2: Convert to fraction form
    12,439.72/17,166.18 = 6,849.64/x
  3. Step 3: Cross multiply
    12,439.72x = 17,166.18 × 6,849.64
  4. Step 4: Simplify right side
    12,439.72x = 117,582,153.18
  5. Step 5: Solve for x
    x = 117,582,153.18/12,439.72
  6. Step 6: Final answer
    x = 9,452.15

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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.