Home / 8,912.03-12,299.14-5,727.21

Finding the Fourth Proportional to 8,912.03, 12,299.14 and 5,727.21

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Solution

The fourth proportional to 8,912.03, 12,299.14 and 5,727.21 is: 7,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.03 : 12,299.14 = 5,727.21 : x
  2. Step 2: Convert to fraction form
    8,912.03/12,299.14 = 5,727.21/x
  3. Step 3: Cross multiply
    8,912.03x = 12,299.14 × 5,727.21
  4. Step 4: Simplify right side
    8,912.03x = 70,439,718.64
  5. Step 5: Solve for x
    x = 70,439,718.64/8,912.03
  6. Step 6: Final answer
    x = 7,903.90

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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.