Home / 13,386.83-20,072.14-5,989.91

Finding the Fourth Proportional to 13,386.83, 20,072.14 and 5,989.91

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Solution

The fourth proportional to 13,386.83, 20,072.14 and 5,989.91 is: 8,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.83 : 20,072.14 = 5,989.91 : x
  2. Step 2: Convert to fraction form
    13,386.83/20,072.14 = 5,989.91/x
  3. Step 3: Cross multiply
    13,386.83x = 20,072.14 × 5,989.91
  4. Step 4: Simplify right side
    13,386.83x = 120,230,196.77
  5. Step 5: Solve for x
    x = 120,230,196.77/13,386.83
  6. Step 6: Final answer
    x = 8,981.23

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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.