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Finding the Fourth Proportional to 6,918.06, 9,548.48 and 4,398.20

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Solution

The fourth proportional to 6,918.06, 9,548.48 and 4,398.20 is: 6,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.06 : 9,548.48 = 4,398.20 : x
  2. Step 2: Convert to fraction form
    6,918.06/9,548.48 = 4,398.20/x
  3. Step 3: Cross multiply
    6,918.06x = 9,548.48 × 4,398.20
  4. Step 4: Simplify right side
    6,918.06x = 41,996,123.80
  5. Step 5: Solve for x
    x = 41,996,123.80/6,918.06
  6. Step 6: Final answer
    x = 6,070.51

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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.