Home / 12,834.78-17,702.19-8,862.54

Finding the Fourth Proportional to 12,834.78, 17,702.19 and 8,862.54

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Solution

The fourth proportional to 12,834.78, 17,702.19 and 8,862.54 is: 12,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.78 : 17,702.19 = 8,862.54 : x
  2. Step 2: Convert to fraction form
    12,834.78/17,702.19 = 8,862.54/x
  3. Step 3: Cross multiply
    12,834.78x = 17,702.19 × 8,862.54
  4. Step 4: Simplify right side
    12,834.78x = 156,886,366.96
  5. Step 5: Solve for x
    x = 156,886,366.96/12,834.78
  6. Step 6: Final answer
    x = 12,223.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.