Home / 12,643.08-18,964.90-3,283.47

Finding the Fourth Proportional to 12,643.08, 18,964.90 and 3,283.47

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Solution

The fourth proportional to 12,643.08, 18,964.90 and 3,283.47 is: 4,925.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.08 : 18,964.90 = 3,283.47 : x
  2. Step 2: Convert to fraction form
    12,643.08/18,964.90 = 3,283.47/x
  3. Step 3: Cross multiply
    12,643.08x = 18,964.90 × 3,283.47
  4. Step 4: Simplify right side
    12,643.08x = 62,270,680.20
  5. Step 5: Solve for x
    x = 62,270,680.20/12,643.08
  6. Step 6: Final answer
    x = 4,925.28

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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.