Home / 6,139.04-8,470.68-4,247.68

Finding the Fourth Proportional to 6,139.04, 8,470.68 and 4,247.68

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Solution

The fourth proportional to 6,139.04, 8,470.68 and 4,247.68 is: 5,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.04 : 8,470.68 = 4,247.68 : x
  2. Step 2: Convert to fraction form
    6,139.04/8,470.68 = 4,247.68/x
  3. Step 3: Cross multiply
    6,139.04x = 8,470.68 × 4,247.68
  4. Step 4: Simplify right side
    6,139.04x = 35,980,738.02
  5. Step 5: Solve for x
    x = 35,980,738.02/6,139.04
  6. Step 6: Final answer
    x = 5,860.97

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Double scale
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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.