Home / 15,478.20-23,205.60-7,692.48

Finding the Fourth Proportional to 15,478.20, 23,205.60 and 7,692.48

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Solution

The fourth proportional to 15,478.20, 23,205.60 and 7,692.48 is: 11,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.20 : 23,205.60 = 7,692.48 : x
  2. Step 2: Convert to fraction form
    15,478.20/23,205.60 = 7,692.48/x
  3. Step 3: Cross multiply
    15,478.20x = 23,205.60 × 7,692.48
  4. Step 4: Simplify right side
    15,478.20x = 178,508,613.89
  5. Step 5: Solve for x
    x = 178,508,613.89/15,478.20
  6. Step 6: Final answer
    x = 11,532.91

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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.