Home / 16,861.60-25,276.20-13,111.30

Finding the Fourth Proportional to 16,861.60, 25,276.20 and 13,111.30

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Solution

The fourth proportional to 16,861.60, 25,276.20 and 13,111.30 is: 19,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.60 : 25,276.20 = 13,111.30 : x
  2. Step 2: Convert to fraction form
    16,861.60/25,276.20 = 13,111.30/x
  3. Step 3: Cross multiply
    16,861.60x = 25,276.20 × 13,111.30
  4. Step 4: Simplify right side
    16,861.60x = 331,403,841.06
  5. Step 5: Solve for x
    x = 331,403,841.06/16,861.60
  6. Step 6: Final answer
    x = 19,654.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.