Home / 13,988.04-20,974.02-8,371.32

Finding the Fourth Proportional to 13,988.04, 20,974.02 and 8,371.32

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Solution

The fourth proportional to 13,988.04, 20,974.02 and 8,371.32 is: 12,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.04 : 20,974.02 = 8,371.32 : x
  2. Step 2: Convert to fraction form
    13,988.04/20,974.02 = 8,371.32/x
  3. Step 3: Cross multiply
    13,988.04x = 20,974.02 × 8,371.32
  4. Step 4: Simplify right side
    13,988.04x = 175,580,233.11
  5. Step 5: Solve for x
    x = 175,580,233.11/13,988.04
  6. Step 6: Final answer
    x = 12,552.17

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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.