Home / 19,146.31-28,724.05-9,274.05

Finding the Fourth Proportional to 19,146.31, 28,724.05 and 9,274.05

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Solution

The fourth proportional to 19,146.31, 28,724.05 and 9,274.05 is: 13,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.31 : 28,724.05 = 9,274.05 : x
  2. Step 2: Convert to fraction form
    19,146.31/28,724.05 = 9,274.05/x
  3. Step 3: Cross multiply
    19,146.31x = 28,724.05 × 9,274.05
  4. Step 4: Simplify right side
    19,146.31x = 266,388,275.90
  5. Step 5: Solve for x
    x = 266,388,275.90/19,146.31
  6. Step 6: Final answer
    x = 13,913.30

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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.