Home / 7,378.60-11,066.21-2,113.51

Finding the Fourth Proportional to 7,378.60, 11,066.21 and 2,113.51

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Solution

The fourth proportional to 7,378.60, 11,066.21 and 2,113.51 is: 3,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.60 : 11,066.21 = 2,113.51 : x
  2. Step 2: Convert to fraction form
    7,378.60/11,066.21 = 2,113.51/x
  3. Step 3: Cross multiply
    7,378.60x = 11,066.21 × 2,113.51
  4. Step 4: Simplify right side
    7,378.60x = 23,388,545.50
  5. Step 5: Solve for x
    x = 23,388,545.50/7,378.60
  6. Step 6: Final answer
    x = 3,169.78

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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.