Home / 19,586.99-29,318.51-12,557.61

Finding the Fourth Proportional to 19,586.99, 29,318.51 and 12,557.61

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Solution

The fourth proportional to 19,586.99, 29,318.51 and 12,557.61 is: 18,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.99 : 29,318.51 = 12,557.61 : x
  2. Step 2: Convert to fraction form
    19,586.99/29,318.51 = 12,557.61/x
  3. Step 3: Cross multiply
    19,586.99x = 29,318.51 × 12,557.61
  4. Step 4: Simplify right side
    19,586.99x = 368,170,351.57
  5. Step 5: Solve for x
    x = 368,170,351.57/19,586.99
  6. Step 6: Final answer
    x = 18,796.68

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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.