Home / 19,788.40-29,687.10-9,250.75

Finding the Fourth Proportional to 19,788.40, 29,687.10 and 9,250.75

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Solution

The fourth proportional to 19,788.40, 29,687.10 and 9,250.75 is: 13,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.40 : 29,687.10 = 9,250.75 : x
  2. Step 2: Convert to fraction form
    19,788.40/29,687.10 = 9,250.75/x
  3. Step 3: Cross multiply
    19,788.40x = 29,687.10 × 9,250.75
  4. Step 4: Simplify right side
    19,788.40x = 274,627,940.33
  5. Step 5: Solve for x
    x = 274,627,940.33/19,788.40
  6. Step 6: Final answer
    x = 13,878.23

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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.