Home / 15,180.48-20,942.55-8,806.59

Finding the Fourth Proportional to 15,180.48, 20,942.55 and 8,806.59

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Solution

The fourth proportional to 15,180.48, 20,942.55 and 8,806.59 is: 12,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.48 : 20,942.55 = 8,806.59 : x
  2. Step 2: Convert to fraction form
    15,180.48/20,942.55 = 8,806.59/x
  3. Step 3: Cross multiply
    15,180.48x = 20,942.55 × 8,806.59
  4. Step 4: Simplify right side
    15,180.48x = 184,432,451.40
  5. Step 5: Solve for x
    x = 184,432,451.40/15,180.48
  6. Step 6: Final answer
    x = 12,149.32

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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.