Home / 8,220.59-12,318.66-4,929.83

Finding the Fourth Proportional to 8,220.59, 12,318.66 and 4,929.83

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Solution

The fourth proportional to 8,220.59, 12,318.66 and 4,929.83 is: 7,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.59 : 12,318.66 = 4,929.83 : x
  2. Step 2: Convert to fraction form
    8,220.59/12,318.66 = 4,929.83/x
  3. Step 3: Cross multiply
    8,220.59x = 12,318.66 × 4,929.83
  4. Step 4: Simplify right side
    8,220.59x = 60,728,838.03
  5. Step 5: Solve for x
    x = 60,728,838.03/8,220.59
  6. Step 6: Final answer
    x = 7,387.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.