Home / 10,656.90-15,984.81-4,082.58

Finding the Fourth Proportional to 10,656.90, 15,984.81 and 4,082.58

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Solution

The fourth proportional to 10,656.90, 15,984.81 and 4,082.58 is: 6,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.90 : 15,984.81 = 4,082.58 : x
  2. Step 2: Convert to fraction form
    10,656.90/15,984.81 = 4,082.58/x
  3. Step 3: Cross multiply
    10,656.90x = 15,984.81 × 4,082.58
  4. Step 4: Simplify right side
    10,656.90x = 65,259,265.61
  5. Step 5: Solve for x
    x = 65,259,265.61/10,656.90
  6. Step 6: Final answer
    x = 6,123.66

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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.