Home / 7,212.30-10,818.45-3,923.70

Finding the Fourth Proportional to 7,212.30, 10,818.45 and 3,923.70

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Solution

The fourth proportional to 7,212.30, 10,818.45 and 3,923.70 is: 5,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.30 : 10,818.45 = 3,923.70 : x
  2. Step 2: Convert to fraction form
    7,212.30/10,818.45 = 3,923.70/x
  3. Step 3: Cross multiply
    7,212.30x = 10,818.45 × 3,923.70
  4. Step 4: Simplify right side
    7,212.30x = 42,448,352.27
  5. Step 5: Solve for x
    x = 42,448,352.27/7,212.30
  6. Step 6: Final answer
    x = 5,885.55

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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.