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Finding the Fourth Proportional to 6,708.91, 10,018.19 and 5,478.76

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Solution

The fourth proportional to 6,708.91, 10,018.19 and 5,478.76 is: 8,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,708.91 : 10,018.19 = 5,478.76 : x
  2. Step 2: Convert to fraction form
    6,708.91/10,018.19 = 5,478.76/x
  3. Step 3: Cross multiply
    6,708.91x = 10,018.19 × 5,478.76
  4. Step 4: Simplify right side
    6,708.91x = 54,887,258.64
  5. Step 5: Solve for x
    x = 54,887,258.64/6,708.91
  6. Step 6: Final answer
    x = 8,181.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.