Home / 10,478.76-15,716.40-3,082.36

Finding the Fourth Proportional to 10,478.76, 15,716.40 and 3,082.36

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Solution

The fourth proportional to 10,478.76, 15,716.40 and 3,082.36 is: 4,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.76 : 15,716.40 = 3,082.36 : x
  2. Step 2: Convert to fraction form
    10,478.76/15,716.40 = 3,082.36/x
  3. Step 3: Cross multiply
    10,478.76x = 15,716.40 × 3,082.36
  4. Step 4: Simplify right side
    10,478.76x = 48,443,602.70
  5. Step 5: Solve for x
    x = 48,443,602.70/10,478.76
  6. Step 6: Final answer
    x = 4,623.03

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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.