Home / 7,478.07-11,217.11-2,212.68

Finding the Fourth Proportional to 7,478.07, 11,217.11 and 2,212.68

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Solution

The fourth proportional to 7,478.07, 11,217.11 and 2,212.68 is: 3,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.07 : 11,217.11 = 2,212.68 : x
  2. Step 2: Convert to fraction form
    7,478.07/11,217.11 = 2,212.68/x
  3. Step 3: Cross multiply
    7,478.07x = 11,217.11 × 2,212.68
  4. Step 4: Simplify right side
    7,478.07x = 24,819,838.42
  5. Step 5: Solve for x
    x = 24,819,838.42/7,478.07
  6. Step 6: Final answer
    x = 3,319.01

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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.