Home / 13,138.48-19,703.49-4,371.04

Finding the Fourth Proportional to 13,138.48, 19,703.49 and 4,371.04

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Solution

The fourth proportional to 13,138.48, 19,703.49 and 4,371.04 is: 6,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.48 : 19,703.49 = 4,371.04 : x
  2. Step 2: Convert to fraction form
    13,138.48/19,703.49 = 4,371.04/x
  3. Step 3: Cross multiply
    13,138.48x = 19,703.49 × 4,371.04
  4. Step 4: Simplify right side
    13,138.48x = 86,124,742.93
  5. Step 5: Solve for x
    x = 86,124,742.93/13,138.48
  6. Step 6: Final answer
    x = 6,555.15

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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.