Home / 8,859.09-12,212.19-7,284.45

Finding the Fourth Proportional to 8,859.09, 12,212.19 and 7,284.45

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Solution

The fourth proportional to 8,859.09, 12,212.19 and 7,284.45 is: 10,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.09 : 12,212.19 = 7,284.45 : x
  2. Step 2: Convert to fraction form
    8,859.09/12,212.19 = 7,284.45/x
  3. Step 3: Cross multiply
    8,859.09x = 12,212.19 × 7,284.45
  4. Step 4: Simplify right side
    8,859.09x = 88,959,087.45
  5. Step 5: Solve for x
    x = 88,959,087.45/8,859.09
  6. Step 6: Final answer
    x = 10,041.56

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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.