Home / 8,222.74-11,347.84-4,685.28

Finding the Fourth Proportional to 8,222.74, 11,347.84 and 4,685.28

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Solution

The fourth proportional to 8,222.74, 11,347.84 and 4,685.28 is: 6,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.74 : 11,347.84 = 4,685.28 : x
  2. Step 2: Convert to fraction form
    8,222.74/11,347.84 = 4,685.28/x
  3. Step 3: Cross multiply
    8,222.74x = 11,347.84 × 4,685.28
  4. Step 4: Simplify right side
    8,222.74x = 53,167,807.80
  5. Step 5: Solve for x
    x = 53,167,807.80/8,222.74
  6. Step 6: Final answer
    x = 6,465.95

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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.