Home / 19,645.58-29,387.37-12,614.78

Finding the Fourth Proportional to 19,645.58, 29,387.37 and 12,614.78

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Solution

The fourth proportional to 19,645.58, 29,387.37 and 12,614.78 is: 18,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.58 : 29,387.37 = 12,614.78 : x
  2. Step 2: Convert to fraction form
    19,645.58/29,387.37 = 12,614.78/x
  3. Step 3: Cross multiply
    19,645.58x = 29,387.37 × 12,614.78
  4. Step 4: Simplify right side
    19,645.58x = 370,715,207.33
  5. Step 5: Solve for x
    x = 370,715,207.33/19,645.58
  6. Step 6: Final answer
    x = 18,870.16

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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.