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Finding the Fourth Proportional to 7,098.08, 9,799.54 and 6,309.88

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Solution

The fourth proportional to 7,098.08, 9,799.54 and 6,309.88 is: 8,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.08 : 9,799.54 = 6,309.88 : x
  2. Step 2: Convert to fraction form
    7,098.08/9,799.54 = 6,309.88/x
  3. Step 3: Cross multiply
    7,098.08x = 9,799.54 × 6,309.88
  4. Step 4: Simplify right side
    7,098.08x = 61,833,921.46
  5. Step 5: Solve for x
    x = 61,833,921.46/7,098.08
  6. Step 6: Final answer
    x = 8,711.36

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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.