Home / 12,153.08-16,753.50-8,793.20

Finding the Fourth Proportional to 12,153.08, 16,753.50 and 8,793.20

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Solution

The fourth proportional to 12,153.08, 16,753.50 and 8,793.20 is: 12,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.08 : 16,753.50 = 8,793.20 : x
  2. Step 2: Convert to fraction form
    12,153.08/16,753.50 = 8,793.20/x
  3. Step 3: Cross multiply
    12,153.08x = 16,753.50 × 8,793.20
  4. Step 4: Simplify right side
    12,153.08x = 147,316,876.20
  5. Step 5: Solve for x
    x = 147,316,876.20/12,153.08
  6. Step 6: Final answer
    x = 12,121.77

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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.