Home / 8,726.45-12,040.97-5,188.37

Finding the Fourth Proportional to 8,726.45, 12,040.97 and 5,188.37

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Solution

The fourth proportional to 8,726.45, 12,040.97 and 5,188.37 is: 7,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.45 : 12,040.97 = 5,188.37 : x
  2. Step 2: Convert to fraction form
    8,726.45/12,040.97 = 5,188.37/x
  3. Step 3: Cross multiply
    8,726.45x = 12,040.97 × 5,188.37
  4. Step 4: Simplify right side
    8,726.45x = 62,472,921.37
  5. Step 5: Solve for x
    x = 62,472,921.37/8,726.45
  6. Step 6: Final answer
    x = 7,159.03

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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.