Home / 15,007.07-20,704.31-9,040.61

Finding the Fourth Proportional to 15,007.07, 20,704.31 and 9,040.61

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Solution

The fourth proportional to 15,007.07, 20,704.31 and 9,040.61 is: 12,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.07 : 20,704.31 = 9,040.61 : x
  2. Step 2: Convert to fraction form
    15,007.07/20,704.31 = 9,040.61/x
  3. Step 3: Cross multiply
    15,007.07x = 20,704.31 × 9,040.61
  4. Step 4: Simplify right side
    15,007.07x = 187,179,632.49
  5. Step 5: Solve for x
    x = 187,179,632.49/15,007.07
  6. Step 6: Final answer
    x = 12,472.76

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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.