Home / 9,144.40-12,618.28-6,755.64

Finding the Fourth Proportional to 9,144.40, 12,618.28 and 6,755.64

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Solution

The fourth proportional to 9,144.40, 12,618.28 and 6,755.64 is: 9,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.40 : 12,618.28 = 6,755.64 : x
  2. Step 2: Convert to fraction form
    9,144.40/12,618.28 = 6,755.64/x
  3. Step 3: Cross multiply
    9,144.40x = 12,618.28 × 6,755.64
  4. Step 4: Simplify right side
    9,144.40x = 85,244,557.10
  5. Step 5: Solve for x
    x = 85,244,557.10/9,144.40
  6. Step 6: Final answer
    x = 9,322.05

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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.