Home / 11,793.40-16,275.88-6,489.18

Finding the Fourth Proportional to 11,793.40, 16,275.88 and 6,489.18

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Solution

The fourth proportional to 11,793.40, 16,275.88 and 6,489.18 is: 8,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.40 : 16,275.88 = 6,489.18 : x
  2. Step 2: Convert to fraction form
    11,793.40/16,275.88 = 6,489.18/x
  3. Step 3: Cross multiply
    11,793.40x = 16,275.88 × 6,489.18
  4. Step 4: Simplify right side
    11,793.40x = 105,617,114.98
  5. Step 5: Solve for x
    x = 105,617,114.98/11,793.40
  6. Step 6: Final answer
    x = 8,955.61

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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.