Home / 15,863.28-21,895.83-9,576.06

Finding the Fourth Proportional to 15,863.28, 21,895.83 and 9,576.06

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Solution

The fourth proportional to 15,863.28, 21,895.83 and 9,576.06 is: 13,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.28 : 21,895.83 = 9,576.06 : x
  2. Step 2: Convert to fraction form
    15,863.28/21,895.83 = 9,576.06/x
  3. Step 3: Cross multiply
    15,863.28x = 21,895.83 × 9,576.06
  4. Step 4: Simplify right side
    15,863.28x = 209,675,781.83
  5. Step 5: Solve for x
    x = 209,675,781.83/15,863.28
  6. Step 6: Final answer
    x = 13,217.68

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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.