Home / 7,507.54-11,215.27-5,409.64

Finding the Fourth Proportional to 7,507.54, 11,215.27 and 5,409.64

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Solution

The fourth proportional to 7,507.54, 11,215.27 and 5,409.64 is: 8,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.54 : 11,215.27 = 5,409.64 : x
  2. Step 2: Convert to fraction form
    7,507.54/11,215.27 = 5,409.64/x
  3. Step 3: Cross multiply
    7,507.54x = 11,215.27 × 5,409.64
  4. Step 4: Simplify right side
    7,507.54x = 60,670,573.20
  5. Step 5: Solve for x
    x = 60,670,573.20/7,507.54
  6. Step 6: Final answer
    x = 8,081.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.