Home / 8,912.57-12,302.43-5,137.24

Finding the Fourth Proportional to 8,912.57, 12,302.43 and 5,137.24

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Solution

The fourth proportional to 8,912.57, 12,302.43 and 5,137.24 is: 7,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.57 : 12,302.43 = 5,137.24 : x
  2. Step 2: Convert to fraction form
    8,912.57/12,302.43 = 5,137.24/x
  3. Step 3: Cross multiply
    8,912.57x = 12,302.43 × 5,137.24
  4. Step 4: Simplify right side
    8,912.57x = 63,200,535.49
  5. Step 5: Solve for x
    x = 63,200,535.49/8,912.57
  6. Step 6: Final answer
    x = 7,091.17

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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.