Home / 11,976.32-16,500.30-8,827.04

Finding the Fourth Proportional to 11,976.32, 16,500.30 and 8,827.04

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Solution

The fourth proportional to 11,976.32, 16,500.30 and 8,827.04 is: 12,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.32 : 16,500.30 = 8,827.04 : x
  2. Step 2: Convert to fraction form
    11,976.32/16,500.30 = 8,827.04/x
  3. Step 3: Cross multiply
    11,976.32x = 16,500.30 × 8,827.04
  4. Step 4: Simplify right side
    11,976.32x = 145,648,808.11
  5. Step 5: Solve for x
    x = 145,648,808.11/11,976.32
  6. Step 6: Final answer
    x = 12,161.40

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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.