Home / 12,432.45-17,156.86-6,767.25

Finding the Fourth Proportional to 12,432.45, 17,156.86 and 6,767.25

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Solution

The fourth proportional to 12,432.45, 17,156.86 and 6,767.25 is: 9,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.45 : 17,156.86 = 6,767.25 : x
  2. Step 2: Convert to fraction form
    12,432.45/17,156.86 = 6,767.25/x
  3. Step 3: Cross multiply
    12,432.45x = 17,156.86 × 6,767.25
  4. Step 4: Simplify right side
    12,432.45x = 116,104,760.84
  5. Step 5: Solve for x
    x = 116,104,760.84/12,432.45
  6. Step 6: Final answer
    x = 9,338.85

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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.