Home / 9,114.12-12,577.73-5,135.36

Finding the Fourth Proportional to 9,114.12, 12,577.73 and 5,135.36

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Solution

The fourth proportional to 9,114.12, 12,577.73 and 5,135.36 is: 7,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.12 : 12,577.73 = 5,135.36 : x
  2. Step 2: Convert to fraction form
    9,114.12/12,577.73 = 5,135.36/x
  3. Step 3: Cross multiply
    9,114.12x = 12,577.73 × 5,135.36
  4. Step 4: Simplify right side
    9,114.12x = 64,591,082.97
  5. Step 5: Solve for x
    x = 64,591,082.97/9,114.12
  6. Step 6: Final answer
    x = 7,086.92

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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.