Home / 10,118.20-13,960.74-6,139.22

Finding the Fourth Proportional to 10,118.20, 13,960.74 and 6,139.22

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Solution

The fourth proportional to 10,118.20, 13,960.74 and 6,139.22 is: 8,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.20 : 13,960.74 = 6,139.22 : x
  2. Step 2: Convert to fraction form
    10,118.20/13,960.74 = 6,139.22/x
  3. Step 3: Cross multiply
    10,118.20x = 13,960.74 × 6,139.22
  4. Step 4: Simplify right side
    10,118.20x = 85,708,054.22
  5. Step 5: Solve for x
    x = 85,708,054.22/10,118.20
  6. Step 6: Final answer
    x = 8,470.68

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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.