Home / 13,660.46-18,862.82-9,198.98

Finding the Fourth Proportional to 13,660.46, 18,862.82 and 9,198.98

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Solution

The fourth proportional to 13,660.46, 18,862.82 and 9,198.98 is: 12,702.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.46 : 18,862.82 = 9,198.98 : x
  2. Step 2: Convert to fraction form
    13,660.46/18,862.82 = 9,198.98/x
  3. Step 3: Cross multiply
    13,660.46x = 18,862.82 × 9,198.98
  4. Step 4: Simplify right side
    13,660.46x = 173,518,703.92
  5. Step 5: Solve for x
    x = 173,518,703.92/13,660.46
  6. Step 6: Final answer
    x = 12,702.26

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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.