Home / 19,126.44-28,689.66-5,978.88

Finding the Fourth Proportional to 19,126.44, 28,689.66 and 5,978.88

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Solution

The fourth proportional to 19,126.44, 28,689.66 and 5,978.88 is: 8,968.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.44 : 28,689.66 = 5,978.88 : x
  2. Step 2: Convert to fraction form
    19,126.44/28,689.66 = 5,978.88/x
  3. Step 3: Cross multiply
    19,126.44x = 28,689.66 × 5,978.88
  4. Step 4: Simplify right side
    19,126.44x = 171,532,034.38
  5. Step 5: Solve for x
    x = 171,532,034.38/19,126.44
  6. Step 6: Final answer
    x = 8,968.32

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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.