Home / 10,638.81-15,954.84-3,617.57

Finding the Fourth Proportional to 10,638.81, 15,954.84 and 3,617.57

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Solution

The fourth proportional to 10,638.81, 15,954.84 and 3,617.57 is: 5,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.81 : 15,954.84 = 3,617.57 : x
  2. Step 2: Convert to fraction form
    10,638.81/15,954.84 = 3,617.57/x
  3. Step 3: Cross multiply
    10,638.81x = 15,954.84 × 3,617.57
  4. Step 4: Simplify right side
    10,638.81x = 57,717,790.43
  5. Step 5: Solve for x
    x = 57,717,790.43/10,638.81
  6. Step 6: Final answer
    x = 5,425.21

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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.