Home / 15,604.29-21,535.29-8,888.43

Finding the Fourth Proportional to 15,604.29, 21,535.29 and 8,888.43

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Solution

The fourth proportional to 15,604.29, 21,535.29 and 8,888.43 is: 12,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.29 : 21,535.29 = 8,888.43 : x
  2. Step 2: Convert to fraction form
    15,604.29/21,535.29 = 8,888.43/x
  3. Step 3: Cross multiply
    15,604.29x = 21,535.29 × 8,888.43
  4. Step 4: Simplify right side
    15,604.29x = 191,414,917.69
  5. Step 5: Solve for x
    x = 191,414,917.69/15,604.29
  6. Step 6: Final answer
    x = 12,266.81

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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.