Home / 7,913.56-10,920.82-4,376.74

Finding the Fourth Proportional to 7,913.56, 10,920.82 and 4,376.74

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Solution

The fourth proportional to 7,913.56, 10,920.82 and 4,376.74 is: 6,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.56 : 10,920.82 = 4,376.74 : x
  2. Step 2: Convert to fraction form
    7,913.56/10,920.82 = 4,376.74/x
  3. Step 3: Cross multiply
    7,913.56x = 10,920.82 × 4,376.74
  4. Step 4: Simplify right side
    7,913.56x = 47,797,589.73
  5. Step 5: Solve for x
    x = 47,797,589.73/7,913.56
  6. Step 6: Final answer
    x = 6,039.96

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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.