Home / 13,315.24-19,973.85-3,454.57

Finding the Fourth Proportional to 13,315.24, 19,973.85 and 3,454.57

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Solution

The fourth proportional to 13,315.24, 19,973.85 and 3,454.57 is: 5,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.24 : 19,973.85 = 3,454.57 : x
  2. Step 2: Convert to fraction form
    13,315.24/19,973.85 = 3,454.57/x
  3. Step 3: Cross multiply
    13,315.24x = 19,973.85 × 3,454.57
  4. Step 4: Simplify right side
    13,315.24x = 69,001,062.99
  5. Step 5: Solve for x
    x = 69,001,062.99/13,315.24
  6. Step 6: Final answer
    x = 5,182.11

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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.