Home / 15,861.92-21,877.20-10,197.26

Finding the Fourth Proportional to 15,861.92, 21,877.20 and 10,197.26

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Solution

The fourth proportional to 15,861.92, 21,877.20 and 10,197.26 is: 14,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.92 : 21,877.20 = 10,197.26 : x
  2. Step 2: Convert to fraction form
    15,861.92/21,877.20 = 10,197.26/x
  3. Step 3: Cross multiply
    15,861.92x = 21,877.20 × 10,197.26
  4. Step 4: Simplify right side
    15,861.92x = 223,087,387.09
  5. Step 5: Solve for x
    x = 223,087,387.09/15,861.92
  6. Step 6: Final answer
    x = 14,064.34

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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.