Home / 9,198.04-12,696.18-5,420.96

Finding the Fourth Proportional to 9,198.04, 12,696.18 and 5,420.96

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Solution

The fourth proportional to 9,198.04, 12,696.18 and 5,420.96 is: 7,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.04 : 12,696.18 = 5,420.96 : x
  2. Step 2: Convert to fraction form
    9,198.04/12,696.18 = 5,420.96/x
  3. Step 3: Cross multiply
    9,198.04x = 12,696.18 × 5,420.96
  4. Step 4: Simplify right side
    9,198.04x = 68,825,483.93
  5. Step 5: Solve for x
    x = 68,825,483.93/9,198.04
  6. Step 6: Final answer
    x = 7,482.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.