Home / 10,135.20-13,980.96-5,942.64

Finding the Fourth Proportional to 10,135.20, 13,980.96 and 5,942.64

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Solution

The fourth proportional to 10,135.20, 13,980.96 and 5,942.64 is: 8,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.20 : 13,980.96 = 5,942.64 : x
  2. Step 2: Convert to fraction form
    10,135.20/13,980.96 = 5,942.64/x
  3. Step 3: Cross multiply
    10,135.20x = 13,980.96 × 5,942.64
  4. Step 4: Simplify right side
    10,135.20x = 83,083,812.13
  5. Step 5: Solve for x
    x = 83,083,812.13/10,135.20
  6. Step 6: Final answer
    x = 8,197.55

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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.