Home / 9,508.79-13,121.87-5,260.07

Finding the Fourth Proportional to 9,508.79, 13,121.87 and 5,260.07

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Solution

The fourth proportional to 9,508.79, 13,121.87 and 5,260.07 is: 7,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,508.79 : 13,121.87 = 5,260.07 : x
  2. Step 2: Convert to fraction form
    9,508.79/13,121.87 = 5,260.07/x
  3. Step 3: Cross multiply
    9,508.79x = 13,121.87 × 5,260.07
  4. Step 4: Simplify right side
    9,508.79x = 69,021,961.24
  5. Step 5: Solve for x
    x = 69,021,961.24/9,508.79
  6. Step 6: Final answer
    x = 7,258.75

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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.