Home / 10,391.46-15,588.57-3,817.74

Finding the Fourth Proportional to 10,391.46, 15,588.57 and 3,817.74

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Solution

The fourth proportional to 10,391.46, 15,588.57 and 3,817.74 is: 5,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.46 : 15,588.57 = 3,817.74 : x
  2. Step 2: Convert to fraction form
    10,391.46/15,588.57 = 3,817.74/x
  3. Step 3: Cross multiply
    10,391.46x = 15,588.57 × 3,817.74
  4. Step 4: Simplify right side
    10,391.46x = 59,513,107.23
  5. Step 5: Solve for x
    x = 59,513,107.23/10,391.46
  6. Step 6: Final answer
    x = 5,727.12

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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.