Home / 8,626.15-11,903.92-5,438.80

Finding the Fourth Proportional to 8,626.15, 11,903.92 and 5,438.80

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Solution

The fourth proportional to 8,626.15, 11,903.92 and 5,438.80 is: 7,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.15 : 11,903.92 = 5,438.80 : x
  2. Step 2: Convert to fraction form
    8,626.15/11,903.92 = 5,438.80/x
  3. Step 3: Cross multiply
    8,626.15x = 11,903.92 × 5,438.80
  4. Step 4: Simplify right side
    8,626.15x = 64,743,040.10
  5. Step 5: Solve for x
    x = 64,743,040.10/8,626.15
  6. Step 6: Final answer
    x = 7,505.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.