Home / 11,815.80-16,306.52-6,510.61

Finding the Fourth Proportional to 11,815.80, 16,306.52 and 6,510.61

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Solution

The fourth proportional to 11,815.80, 16,306.52 and 6,510.61 is: 8,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.80 : 16,306.52 = 6,510.61 : x
  2. Step 2: Convert to fraction form
    11,815.80/16,306.52 = 6,510.61/x
  3. Step 3: Cross multiply
    11,815.80x = 16,306.52 × 6,510.61
  4. Step 4: Simplify right side
    11,815.80x = 106,165,392.18
  5. Step 5: Solve for x
    x = 106,165,392.18/11,815.80
  6. Step 6: Final answer
    x = 8,985.04

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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.