Home / 10,635.99-15,943.65-5,087.90

Finding the Fourth Proportional to 10,635.99, 15,943.65 and 5,087.90

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Solution

The fourth proportional to 10,635.99, 15,943.65 and 5,087.90 is: 7,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,635.99 : 15,943.65 = 5,087.90 : x
  2. Step 2: Convert to fraction form
    10,635.99/15,943.65 = 5,087.90/x
  3. Step 3: Cross multiply
    10,635.99x = 15,943.65 × 5,087.90
  4. Step 4: Simplify right side
    10,635.99x = 81,119,617.12
  5. Step 5: Solve for x
    x = 81,119,617.12/10,635.99
  6. Step 6: Final answer
    x = 7,626.90

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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.