Home / 15,040.39-20,757.91-8,665.76

Finding the Fourth Proportional to 15,040.39, 20,757.91 and 8,665.76

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Solution

The fourth proportional to 15,040.39, 20,757.91 and 8,665.76 is: 11,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.39 : 20,757.91 = 8,665.76 : x
  2. Step 2: Convert to fraction form
    15,040.39/20,757.91 = 8,665.76/x
  3. Step 3: Cross multiply
    15,040.39x = 20,757.91 × 8,665.76
  4. Step 4: Simplify right side
    15,040.39x = 179,883,162.59
  5. Step 5: Solve for x
    x = 179,883,162.59/15,040.39
  6. Step 6: Final answer
    x = 11,960.00

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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.