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Finding the Fourth Proportional to 8,368.47, 12,552.71 and 3,174.35

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Solution

The fourth proportional to 8,368.47, 12,552.71 and 3,174.35 is: 4,761.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.47 : 12,552.71 = 3,174.35 : x
  2. Step 2: Convert to fraction form
    8,368.47/12,552.71 = 3,174.35/x
  3. Step 3: Cross multiply
    8,368.47x = 12,552.71 × 3,174.35
  4. Step 4: Simplify right side
    8,368.47x = 39,846,647.73
  5. Step 5: Solve for x
    x = 39,846,647.73/8,368.47
  6. Step 6: Final answer
    x = 4,761.52

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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.