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Finding the Fourth Proportional to 8,574.48, 12,862.50 and 3,379.16

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Solution

The fourth proportional to 8,574.48, 12,862.50 and 3,379.16 is: 5,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.48 : 12,862.50 = 3,379.16 : x
  2. Step 2: Convert to fraction form
    8,574.48/12,862.50 = 3,379.16/x
  3. Step 3: Cross multiply
    8,574.48x = 12,862.50 × 3,379.16
  4. Step 4: Simplify right side
    8,574.48x = 43,464,445.50
  5. Step 5: Solve for x
    x = 43,464,445.50/8,574.48
  6. Step 6: Final answer
    x = 5,069.05

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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.