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Finding the Fourth Proportional to 6,143.59, 8,479.97 and 5,313.22

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Solution

The fourth proportional to 6,143.59, 8,479.97 and 5,313.22 is: 7,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.59 : 8,479.97 = 5,313.22 : x
  2. Step 2: Convert to fraction form
    6,143.59/8,479.97 = 5,313.22/x
  3. Step 3: Cross multiply
    6,143.59x = 8,479.97 × 5,313.22
  4. Step 4: Simplify right side
    6,143.59x = 45,055,946.20
  5. Step 5: Solve for x
    x = 45,055,946.20/6,143.59
  6. Step 6: Final answer
    x = 7,333.81

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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.