Home / 9,211.86-13,819.76-2,972.22

Finding the Fourth Proportional to 9,211.86, 13,819.76 and 2,972.22

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Solution

The fourth proportional to 9,211.86, 13,819.76 and 2,972.22 is: 4,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.86 : 13,819.76 = 2,972.22 : x
  2. Step 2: Convert to fraction form
    9,211.86/13,819.76 = 2,972.22/x
  3. Step 3: Cross multiply
    9,211.86x = 13,819.76 × 2,972.22
  4. Step 4: Simplify right side
    9,211.86x = 41,075,352.21
  5. Step 5: Solve for x
    x = 41,075,352.21/9,211.86
  6. Step 6: Final answer
    x = 4,458.97

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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.