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Finding the Fourth Proportional to 8,918.48, 13,368.24 and 6,452.12

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Solution

The fourth proportional to 8,918.48, 13,368.24 and 6,452.12 is: 9,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.48 : 13,368.24 = 6,452.12 : x
  2. Step 2: Convert to fraction form
    8,918.48/13,368.24 = 6,452.12/x
  3. Step 3: Cross multiply
    8,918.48x = 13,368.24 × 6,452.12
  4. Step 4: Simplify right side
    8,918.48x = 86,253,488.67
  5. Step 5: Solve for x
    x = 86,253,488.67/8,918.48
  6. Step 6: Final answer
    x = 9,671.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.