Home / 9,087.78-12,540.01-5,260.08

Finding the Fourth Proportional to 9,087.78, 12,540.01 and 5,260.08

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Solution

The fourth proportional to 9,087.78, 12,540.01 and 5,260.08 is: 7,258.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.78 : 12,540.01 = 5,260.08 : x
  2. Step 2: Convert to fraction form
    9,087.78/12,540.01 = 5,260.08/x
  3. Step 3: Cross multiply
    9,087.78x = 12,540.01 × 5,260.08
  4. Step 4: Simplify right side
    9,087.78x = 65,961,455.80
  5. Step 5: Solve for x
    x = 65,961,455.80/9,087.78
  6. Step 6: Final answer
    x = 7,258.26

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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.