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Finding the Fourth Proportional to 8,574.75, 12,862.85 and 2,418.75

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Solution

The fourth proportional to 8,574.75, 12,862.85 and 2,418.75 is: 3,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.75 : 12,862.85 = 2,418.75 : x
  2. Step 2: Convert to fraction form
    8,574.75/12,862.85 = 2,418.75/x
  3. Step 3: Cross multiply
    8,574.75x = 12,862.85 × 2,418.75
  4. Step 4: Simplify right side
    8,574.75x = 31,112,006.34
  5. Step 5: Solve for x
    x = 31,112,006.34/8,574.75
  6. Step 6: Final answer
    x = 3,628.33

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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.