Home / 8,929.11-13,354.25-5,409.39

Finding the Fourth Proportional to 8,929.11, 13,354.25 and 5,409.39

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Solution

The fourth proportional to 8,929.11, 13,354.25 and 5,409.39 is: 8,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.11 : 13,354.25 = 5,409.39 : x
  2. Step 2: Convert to fraction form
    8,929.11/13,354.25 = 5,409.39/x
  3. Step 3: Cross multiply
    8,929.11x = 13,354.25 × 5,409.39
  4. Step 4: Simplify right side
    8,929.11x = 72,238,319.36
  5. Step 5: Solve for x
    x = 72,238,319.36/8,929.11
  6. Step 6: Final answer
    x = 8,090.20

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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.