Home / 9,221.16-13,830.09-2,980.92

Finding the Fourth Proportional to 9,221.16, 13,830.09 and 2,980.92

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Solution

The fourth proportional to 9,221.16, 13,830.09 and 2,980.92 is: 4,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.16 : 13,830.09 = 2,980.92 : x
  2. Step 2: Convert to fraction form
    9,221.16/13,830.09 = 2,980.92/x
  3. Step 3: Cross multiply
    9,221.16x = 13,830.09 × 2,980.92
  4. Step 4: Simplify right side
    9,221.16x = 41,226,391.88
  5. Step 5: Solve for x
    x = 41,226,391.88/9,221.16
  6. Step 6: Final answer
    x = 4,470.85

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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.