Home / 13,765.24-20,642.49-4,877.15

Finding the Fourth Proportional to 13,765.24, 20,642.49 and 4,877.15

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Solution

The fourth proportional to 13,765.24, 20,642.49 and 4,877.15 is: 7,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.24 : 20,642.49 = 4,877.15 : x
  2. Step 2: Convert to fraction form
    13,765.24/20,642.49 = 4,877.15/x
  3. Step 3: Cross multiply
    13,765.24x = 20,642.49 × 4,877.15
  4. Step 4: Simplify right side
    13,765.24x = 100,676,571.71
  5. Step 5: Solve for x
    x = 100,676,571.71/13,765.24
  6. Step 6: Final answer
    x = 7,313.83

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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.