Home / 19,286.57-26,615.33-10,788.66

Finding the Fourth Proportional to 19,286.57, 26,615.33 and 10,788.66

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Solution

The fourth proportional to 19,286.57, 26,615.33 and 10,788.66 is: 14,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.57 : 26,615.33 = 10,788.66 : x
  2. Step 2: Convert to fraction form
    19,286.57/26,615.33 = 10,788.66/x
  3. Step 3: Cross multiply
    19,286.57x = 26,615.33 × 10,788.66
  4. Step 4: Simplify right side
    19,286.57x = 287,143,793.36
  5. Step 5: Solve for x
    x = 287,143,793.36/19,286.57
  6. Step 6: Final answer
    x = 14,888.27

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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.