Home / 9,580.80-13,221.18-5,388.24

Finding the Fourth Proportional to 9,580.80, 13,221.18 and 5,388.24

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Solution

The fourth proportional to 9,580.80, 13,221.18 and 5,388.24 is: 7,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,580.80 : 13,221.18 = 5,388.24 : x
  2. Step 2: Convert to fraction form
    9,580.80/13,221.18 = 5,388.24/x
  3. Step 3: Cross multiply
    9,580.80x = 13,221.18 × 5,388.24
  4. Step 4: Simplify right side
    9,580.80x = 71,238,890.92
  5. Step 5: Solve for x
    x = 71,238,890.92/9,580.80
  6. Step 6: Final answer
    x = 7,435.59

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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.