Home / 8,930.16-13,395.38-3,386.12

Finding the Fourth Proportional to 8,930.16, 13,395.38 and 3,386.12

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Solution

The fourth proportional to 8,930.16, 13,395.38 and 3,386.12 is: 5,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.16 : 13,395.38 = 3,386.12 : x
  2. Step 2: Convert to fraction form
    8,930.16/13,395.38 = 3,386.12/x
  3. Step 3: Cross multiply
    8,930.16x = 13,395.38 × 3,386.12
  4. Step 4: Simplify right side
    8,930.16x = 45,358,280.22
  5. Step 5: Solve for x
    x = 45,358,280.22/8,930.16
  6. Step 6: Final answer
    x = 5,079.22

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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.