Home / 12,653.46-17,433.18-8,821.44

Finding the Fourth Proportional to 12,653.46, 17,433.18 and 8,821.44

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Solution

The fourth proportional to 12,653.46, 17,433.18 and 8,821.44 is: 12,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.46 : 17,433.18 = 8,821.44 : x
  2. Step 2: Convert to fraction form
    12,653.46/17,433.18 = 8,821.44/x
  3. Step 3: Cross multiply
    12,653.46x = 17,433.18 × 8,821.44
  4. Step 4: Simplify right side
    12,653.46x = 153,785,751.38
  5. Step 5: Solve for x
    x = 153,785,751.38/12,653.46
  6. Step 6: Final answer
    x = 12,153.65

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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.