Home / 9,114.08-12,577.28-5,135.58

Finding the Fourth Proportional to 9,114.08, 12,577.28 and 5,135.58

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Solution

The fourth proportional to 9,114.08, 12,577.28 and 5,135.58 is: 7,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.08 : 12,577.28 = 5,135.58 : x
  2. Step 2: Convert to fraction form
    9,114.08/12,577.28 = 5,135.58/x
  3. Step 3: Cross multiply
    9,114.08x = 12,577.28 × 5,135.58
  4. Step 4: Simplify right side
    9,114.08x = 64,591,627.62
  5. Step 5: Solve for x
    x = 64,591,627.62/9,114.08
  6. Step 6: Final answer
    x = 7,087.02

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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.