Home / 10,795.20-16,176.60-9,142.80

Finding the Fourth Proportional to 10,795.20, 16,176.60 and 9,142.80

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Solution

The fourth proportional to 10,795.20, 16,176.60 and 9,142.80 is: 13,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,795.20 : 16,176.60 = 9,142.80 : x
  2. Step 2: Convert to fraction form
    10,795.20/16,176.60 = 9,142.80/x
  3. Step 3: Cross multiply
    10,795.20x = 16,176.60 × 9,142.80
  4. Step 4: Simplify right side
    10,795.20x = 147,899,418.48
  5. Step 5: Solve for x
    x = 147,899,418.48/10,795.20
  6. Step 6: Final answer
    x = 13,700.48

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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.