Home / 10,202.85-15,271.45-5,265.76

Finding the Fourth Proportional to 10,202.85, 15,271.45 and 5,265.76

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Solution

The fourth proportional to 10,202.85, 15,271.45 and 5,265.76 is: 7,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202.85 : 15,271.45 = 5,265.76 : x
  2. Step 2: Convert to fraction form
    10,202.85/15,271.45 = 5,265.76/x
  3. Step 3: Cross multiply
    10,202.85x = 15,271.45 × 5,265.76
  4. Step 4: Simplify right side
    10,202.85x = 80,415,790.55
  5. Step 5: Solve for x
    x = 80,415,790.55/10,202.85
  6. Step 6: Final answer
    x = 7,881.70

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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.