Home / 7,399.16-10,209.92-4,212.87

Finding the Fourth Proportional to 7,399.16, 10,209.92 and 4,212.87

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Solution

The fourth proportional to 7,399.16, 10,209.92 and 4,212.87 is: 5,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399.16 : 10,209.92 = 4,212.87 : x
  2. Step 2: Convert to fraction form
    7,399.16/10,209.92 = 4,212.87/x
  3. Step 3: Cross multiply
    7,399.16x = 10,209.92 × 4,212.87
  4. Step 4: Simplify right side
    7,399.16x = 43,013,076.20
  5. Step 5: Solve for x
    x = 43,013,076.20/7,399.16
  6. Step 6: Final answer
    x = 5,813.24

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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.