Home / 9,215.16-13,821.12-2,974.92

Finding the Fourth Proportional to 9,215.16, 13,821.12 and 2,974.92

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Solution

The fourth proportional to 9,215.16, 13,821.12 and 2,974.92 is: 4,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.16 : 13,821.12 = 2,974.92 : x
  2. Step 2: Convert to fraction form
    9,215.16/13,821.12 = 2,974.92/x
  3. Step 3: Cross multiply
    9,215.16x = 13,821.12 × 2,974.92
  4. Step 4: Simplify right side
    9,215.16x = 41,116,726.31
  5. Step 5: Solve for x
    x = 41,116,726.31/9,215.16
  6. Step 6: Final answer
    x = 4,461.86

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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.