Home / 19,097.31-28,639.12-6,613.98

Finding the Fourth Proportional to 19,097.31, 28,639.12 and 6,613.98

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Solution

The fourth proportional to 19,097.31, 28,639.12 and 6,613.98 is: 9,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,097.31 : 28,639.12 = 6,613.98 : x
  2. Step 2: Convert to fraction form
    19,097.31/28,639.12 = 6,613.98/x
  3. Step 3: Cross multiply
    19,097.31x = 28,639.12 × 6,613.98
  4. Step 4: Simplify right side
    19,097.31x = 189,418,566.90
  5. Step 5: Solve for x
    x = 189,418,566.90/19,097.31
  6. Step 6: Final answer
    x = 9,918.60

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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.