Home / 12,304.90-18,456.71-3,539.47

Finding the Fourth Proportional to 12,304.90, 18,456.71 and 3,539.47

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Solution

The fourth proportional to 12,304.90, 18,456.71 and 3,539.47 is: 5,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.90 : 18,456.71 = 3,539.47 : x
  2. Step 2: Convert to fraction form
    12,304.90/18,456.71 = 3,539.47/x
  3. Step 3: Cross multiply
    12,304.90x = 18,456.71 × 3,539.47
  4. Step 4: Simplify right side
    12,304.90x = 65,326,953.65
  5. Step 5: Solve for x
    x = 65,326,953.65/12,304.90
  6. Step 6: Final answer
    x = 5,309.02

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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.