Home / 14,261.46-19,660.23-9,778.11

Finding the Fourth Proportional to 14,261.46, 19,660.23 and 9,778.11

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Solution

The fourth proportional to 14,261.46, 19,660.23 and 9,778.11 is: 13,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.46 : 19,660.23 = 9,778.11 : x
  2. Step 2: Convert to fraction form
    14,261.46/19,660.23 = 9,778.11/x
  3. Step 3: Cross multiply
    14,261.46x = 19,660.23 × 9,778.11
  4. Step 4: Simplify right side
    14,261.46x = 192,239,891.57
  5. Step 5: Solve for x
    x = 192,239,891.57/14,261.46
  6. Step 6: Final answer
    x = 13,479.68

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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.