Home / 10,263.21-15,385.56-3,687.90

Finding the Fourth Proportional to 10,263.21, 15,385.56 and 3,687.90

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Solution

The fourth proportional to 10,263.21, 15,385.56 and 3,687.90 is: 5,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,263.21 : 15,385.56 = 3,687.90 : x
  2. Step 2: Convert to fraction form
    10,263.21/15,385.56 = 3,687.90/x
  3. Step 3: Cross multiply
    10,263.21x = 15,385.56 × 3,687.90
  4. Step 4: Simplify right side
    10,263.21x = 56,740,406.72
  5. Step 5: Solve for x
    x = 56,740,406.72/10,263.21
  6. Step 6: Final answer
    x = 5,528.52

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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.