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Finding the Fourth Proportional to 6,918.66, 10,419.03 and 6,233.40

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Solution

The fourth proportional to 6,918.66, 10,419.03 and 6,233.40 is: 9,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.66 : 10,419.03 = 6,233.40 : x
  2. Step 2: Convert to fraction form
    6,918.66/10,419.03 = 6,233.40/x
  3. Step 3: Cross multiply
    6,918.66x = 10,419.03 × 6,233.40
  4. Step 4: Simplify right side
    6,918.66x = 64,945,981.60
  5. Step 5: Solve for x
    x = 64,945,981.60/6,918.66
  6. Step 6: Final answer
    x = 9,387.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.