Home / 10,082.38-13,913.40-5,775.34

Finding the Fourth Proportional to 10,082.38, 13,913.40 and 5,775.34

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Solution

The fourth proportional to 10,082.38, 13,913.40 and 5,775.34 is: 7,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.38 : 13,913.40 = 5,775.34 : x
  2. Step 2: Convert to fraction form
    10,082.38/13,913.40 = 5,775.34/x
  3. Step 3: Cross multiply
    10,082.38x = 13,913.40 × 5,775.34
  4. Step 4: Simplify right side
    10,082.38x = 80,354,615.56
  5. Step 5: Solve for x
    x = 80,354,615.56/10,082.38
  6. Step 6: Final answer
    x = 7,969.81

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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.