Home / 7,913.83-10,920.61-4,376.96

Finding the Fourth Proportional to 7,913.83, 10,920.61 and 4,376.96

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Solution

The fourth proportional to 7,913.83, 10,920.61 and 4,376.96 is: 6,039.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.83 : 10,920.61 = 4,376.96 : x
  2. Step 2: Convert to fraction form
    7,913.83/10,920.61 = 4,376.96/x
  3. Step 3: Cross multiply
    7,913.83x = 10,920.61 × 4,376.96
  4. Step 4: Simplify right side
    7,913.83x = 47,799,073.15
  5. Step 5: Solve for x
    x = 47,799,073.15/7,913.83
  6. Step 6: Final answer
    x = 6,039.94

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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.