Home / 8,907.90-13,358.50-3,640.11

Finding the Fourth Proportional to 8,907.90, 13,358.50 and 3,640.11

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Solution

The fourth proportional to 8,907.90, 13,358.50 and 3,640.11 is: 5,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.90 : 13,358.50 = 3,640.11 : x
  2. Step 2: Convert to fraction form
    8,907.90/13,358.50 = 3,640.11/x
  3. Step 3: Cross multiply
    8,907.90x = 13,358.50 × 3,640.11
  4. Step 4: Simplify right side
    8,907.90x = 48,626,350.24
  5. Step 5: Solve for x
    x = 48,626,350.24/8,907.90
  6. Step 6: Final answer
    x = 5,458.79

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1.5x scale

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.