Home / 8,208.28-11,332.10-5,418.64

Finding the Fourth Proportional to 8,208.28, 11,332.10 and 5,418.64

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Solution

The fourth proportional to 8,208.28, 11,332.10 and 5,418.64 is: 7,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.28 : 11,332.10 = 5,418.64 : x
  2. Step 2: Convert to fraction form
    8,208.28/11,332.10 = 5,418.64/x
  3. Step 3: Cross multiply
    8,208.28x = 11,332.10 × 5,418.64
  4. Step 4: Simplify right side
    8,208.28x = 61,404,570.34
  5. Step 5: Solve for x
    x = 61,404,570.34/8,208.28
  6. Step 6: Final answer
    x = 7,480.81

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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.