Home / 15,138.75-22,708.96-5,779.53

Finding the Fourth Proportional to 15,138.75, 22,708.96 and 5,779.53

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Solution

The fourth proportional to 15,138.75, 22,708.96 and 5,779.53 is: 8,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.75 : 22,708.96 = 5,779.53 : x
  2. Step 2: Convert to fraction form
    15,138.75/22,708.96 = 5,779.53/x
  3. Step 3: Cross multiply
    15,138.75x = 22,708.96 × 5,779.53
  4. Step 4: Simplify right side
    15,138.75x = 131,247,037.27
  5. Step 5: Solve for x
    x = 131,247,037.27/15,138.75
  6. Step 6: Final answer
    x = 8,669.61

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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.