Home / 7,431.88-11,155.90-5,588.28

Finding the Fourth Proportional to 7,431.88, 11,155.90 and 5,588.28

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Solution

The fourth proportional to 7,431.88, 11,155.90 and 5,588.28 is: 8,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.88 : 11,155.90 = 5,588.28 : x
  2. Step 2: Convert to fraction form
    7,431.88/11,155.90 = 5,588.28/x
  3. Step 3: Cross multiply
    7,431.88x = 11,155.90 × 5,588.28
  4. Step 4: Simplify right side
    7,431.88x = 62,342,292.85
  5. Step 5: Solve for x
    x = 62,342,292.85/7,431.88
  6. Step 6: Final answer
    x = 8,388.50

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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.