Home / 9,215.46-13,821.78-2,974.62

Finding the Fourth Proportional to 9,215.46, 13,821.78 and 2,974.62

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Solution

The fourth proportional to 9,215.46, 13,821.78 and 2,974.62 is: 4,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.46 : 13,821.78 = 2,974.62 : x
  2. Step 2: Convert to fraction form
    9,215.46/13,821.78 = 2,974.62/x
  3. Step 3: Cross multiply
    9,215.46x = 13,821.78 × 2,974.62
  4. Step 4: Simplify right side
    9,215.46x = 41,114,543.22
  5. Step 5: Solve for x
    x = 41,114,543.22/9,215.46
  6. Step 6: Final answer
    x = 4,461.47

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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.