Home / 9,438.20-14,135.70-9,222.20

Finding the Fourth Proportional to 9,438.20, 14,135.70 and 9,222.20

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Solution

The fourth proportional to 9,438.20, 14,135.70 and 9,222.20 is: 13,812.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.20 : 14,135.70 = 9,222.20 : x
  2. Step 2: Convert to fraction form
    9,438.20/14,135.70 = 9,222.20/x
  3. Step 3: Cross multiply
    9,438.20x = 14,135.70 × 9,222.20
  4. Step 4: Simplify right side
    9,438.20x = 130,362,252.54
  5. Step 5: Solve for x
    x = 130,362,252.54/9,438.20
  6. Step 6: Final answer
    x = 13,812.19

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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.