Home / 7,531.79-11,288.41-5,458.89

Finding the Fourth Proportional to 7,531.79, 11,288.41 and 5,458.89

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Solution

The fourth proportional to 7,531.79, 11,288.41 and 5,458.89 is: 8,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,531.79 : 11,288.41 = 5,458.89 : x
  2. Step 2: Convert to fraction form
    7,531.79/11,288.41 = 5,458.89/x
  3. Step 3: Cross multiply
    7,531.79x = 11,288.41 × 5,458.89
  4. Step 4: Simplify right side
    7,531.79x = 61,622,247.86
  5. Step 5: Solve for x
    x = 61,622,247.86/7,531.79
  6. Step 6: Final answer
    x = 8,181.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.