Home / 7,915.68-10,923.96-4,378.83

Finding the Fourth Proportional to 7,915.68, 10,923.96 and 4,378.83

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Solution

The fourth proportional to 7,915.68, 10,923.96 and 4,378.83 is: 6,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.68 : 10,923.96 = 4,378.83 : x
  2. Step 2: Convert to fraction form
    7,915.68/10,923.96 = 4,378.83/x
  3. Step 3: Cross multiply
    7,915.68x = 10,923.96 × 4,378.83
  4. Step 4: Simplify right side
    7,915.68x = 47,834,163.77
  5. Step 5: Solve for x
    x = 47,834,163.77/7,915.68
  6. Step 6: Final answer
    x = 6,042.96

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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.