Home / 9,087.32-12,540.12-5,310.56

Finding the Fourth Proportional to 9,087.32, 12,540.12 and 5,310.56

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Solution

The fourth proportional to 9,087.32, 12,540.12 and 5,310.56 is: 7,328.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.32 : 12,540.12 = 5,310.56 : x
  2. Step 2: Convert to fraction form
    9,087.32/12,540.12 = 5,310.56/x
  3. Step 3: Cross multiply
    9,087.32x = 12,540.12 × 5,310.56
  4. Step 4: Simplify right side
    9,087.32x = 66,595,059.67
  5. Step 5: Solve for x
    x = 66,595,059.67/9,087.32
  6. Step 6: Final answer
    x = 7,328.35

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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.