Home / 13,320.04-19,954.14-8,689

Finding the Fourth Proportional to 13,320.04, 19,954.14 and 8,689

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Solution

The fourth proportional to 13,320.04, 19,954.14 and 8,689 is: 13,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.04 : 19,954.14 = 8,689 : x
  2. Step 2: Convert to fraction form
    13,320.04/19,954.14 = 8,689/x
  3. Step 3: Cross multiply
    13,320.04x = 19,954.14 × 8,689
  4. Step 4: Simplify right side
    13,320.04x = 173,381,522.46
  5. Step 5: Solve for x
    x = 173,381,522.46/13,320.04
  6. Step 6: Final answer
    x = 13,016.59

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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.