Home / 12,510.75-17,267.15-8,040.09

Finding the Fourth Proportional to 12,510.75, 17,267.15 and 8,040.09

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Solution

The fourth proportional to 12,510.75, 17,267.15 and 8,040.09 is: 11,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.75 : 17,267.15 = 8,040.09 : x
  2. Step 2: Convert to fraction form
    12,510.75/17,267.15 = 8,040.09/x
  3. Step 3: Cross multiply
    12,510.75x = 17,267.15 × 8,040.09
  4. Step 4: Simplify right side
    12,510.75x = 138,829,440.04
  5. Step 5: Solve for x
    x = 138,829,440.04/12,510.75
  6. Step 6: Final answer
    x = 11,096.81

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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.