Home / 15,877.08-21,910.50-8,803.62

Finding the Fourth Proportional to 15,877.08, 21,910.50 and 8,803.62

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Solution

The fourth proportional to 15,877.08, 21,910.50 and 8,803.62 is: 12,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.08 : 21,910.50 = 8,803.62 : x
  2. Step 2: Convert to fraction form
    15,877.08/21,910.50 = 8,803.62/x
  3. Step 3: Cross multiply
    15,877.08x = 21,910.50 × 8,803.62
  4. Step 4: Simplify right side
    15,877.08x = 192,891,716.01
  5. Step 5: Solve for x
    x = 192,891,716.01/15,877.08
  6. Step 6: Final answer
    x = 12,149.07

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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.