Home / 19,090.38-28,626.31-6,611.12

Finding the Fourth Proportional to 19,090.38, 28,626.31 and 6,611.12

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Solution

The fourth proportional to 19,090.38, 28,626.31 and 6,611.12 is: 9,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.38 : 28,626.31 = 6,611.12 : x
  2. Step 2: Convert to fraction form
    19,090.38/28,626.31 = 6,611.12/x
  3. Step 3: Cross multiply
    19,090.38x = 28,626.31 × 6,611.12
  4. Step 4: Simplify right side
    19,090.38x = 189,251,943.05
  5. Step 5: Solve for x
    x = 189,251,943.05/19,090.38
  6. Step 6: Final answer
    x = 9,913.47

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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.