Home / 10,819.28-14,930.68-6,343.12

Finding the Fourth Proportional to 10,819.28, 14,930.68 and 6,343.12

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Solution

The fourth proportional to 10,819.28, 14,930.68 and 6,343.12 is: 8,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.28 : 14,930.68 = 6,343.12 : x
  2. Step 2: Convert to fraction form
    10,819.28/14,930.68 = 6,343.12/x
  3. Step 3: Cross multiply
    10,819.28x = 14,930.68 × 6,343.12
  4. Step 4: Simplify right side
    10,819.28x = 94,707,094.92
  5. Step 5: Solve for x
    x = 94,707,094.92/10,819.28
  6. Step 6: Final answer
    x = 8,753.55

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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.