Home / 19,686.68-29,563.46-13,154.84

Finding the Fourth Proportional to 19,686.68, 29,563.46 and 13,154.84

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Solution

The fourth proportional to 19,686.68, 29,563.46 and 13,154.84 is: 19,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.68 : 29,563.46 = 13,154.84 : x
  2. Step 2: Convert to fraction form
    19,686.68/29,563.46 = 13,154.84/x
  3. Step 3: Cross multiply
    19,686.68x = 29,563.46 × 13,154.84
  4. Step 4: Simplify right side
    19,686.68x = 388,902,586.15
  5. Step 5: Solve for x
    x = 388,902,586.15/19,686.68
  6. Step 6: Final answer
    x = 19,754.60

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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.