Home / 9,114.55-12,577.84-5,135.42

Finding the Fourth Proportional to 9,114.55, 12,577.84 and 5,135.42

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Solution

The fourth proportional to 9,114.55, 12,577.84 and 5,135.42 is: 7,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.55 : 12,577.84 = 5,135.42 : x
  2. Step 2: Convert to fraction form
    9,114.55/12,577.84 = 5,135.42/x
  3. Step 3: Cross multiply
    9,114.55x = 12,577.84 × 5,135.42
  4. Step 4: Simplify right side
    9,114.55x = 64,592,509.70
  5. Step 5: Solve for x
    x = 64,592,509.70/9,114.55
  6. Step 6: Final answer
    x = 7,086.75

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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.