Home / 11,816.74-16,306.90-6,439.24

Finding the Fourth Proportional to 11,816.74, 16,306.90 and 6,439.24

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Solution

The fourth proportional to 11,816.74, 16,306.90 and 6,439.24 is: 8,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.74 : 16,306.90 = 6,439.24 : x
  2. Step 2: Convert to fraction form
    11,816.74/16,306.90 = 6,439.24/x
  3. Step 3: Cross multiply
    11,816.74x = 16,306.90 × 6,439.24
  4. Step 4: Simplify right side
    11,816.74x = 105,004,042.76
  5. Step 5: Solve for x
    x = 105,004,042.76/11,816.74
  6. Step 6: Final answer
    x = 8,886.04

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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.