Home / 18,343.90-25,311.45-10,788.76

Finding the Fourth Proportional to 18,343.90, 25,311.45 and 10,788.76

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Solution

The fourth proportional to 18,343.90, 25,311.45 and 10,788.76 is: 14,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.90 : 25,311.45 = 10,788.76 : x
  2. Step 2: Convert to fraction form
    18,343.90/25,311.45 = 10,788.76/x
  3. Step 3: Cross multiply
    18,343.90x = 25,311.45 × 10,788.76
  4. Step 4: Simplify right side
    18,343.90x = 273,079,159.30
  5. Step 5: Solve for x
    x = 273,079,159.30/18,343.90
  6. Step 6: Final answer
    x = 14,886.65

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Double scale
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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.