Home / 19,126.43-28,689.66-5,978.87

Finding the Fourth Proportional to 19,126.43, 28,689.66 and 5,978.87

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Solution

The fourth proportional to 19,126.43, 28,689.66 and 5,978.87 is: 8,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.43 : 28,689.66 = 5,978.87 : x
  2. Step 2: Convert to fraction form
    19,126.43/28,689.66 = 5,978.87/x
  3. Step 3: Cross multiply
    19,126.43x = 28,689.66 × 5,978.87
  4. Step 4: Simplify right side
    19,126.43x = 171,531,604.04
  5. Step 5: Solve for x
    x = 171,531,604.04/19,126.43
  6. Step 6: Final answer
    x = 8,968.30

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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.