Home / 12,320.75-17,002.65-6,731.75

Finding the Fourth Proportional to 12,320.75, 17,002.65 and 6,731.75

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Solution

The fourth proportional to 12,320.75, 17,002.65 and 6,731.75 is: 9,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.75 : 17,002.65 = 6,731.75 : x
  2. Step 2: Convert to fraction form
    12,320.75/17,002.65 = 6,731.75/x
  3. Step 3: Cross multiply
    12,320.75x = 17,002.65 × 6,731.75
  4. Step 4: Simplify right side
    12,320.75x = 114,457,589.14
  5. Step 5: Solve for x
    x = 114,457,589.14/12,320.75
  6. Step 6: Final answer
    x = 9,289.82

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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.