Home / 12,167.08-18,252.47-5,147.10

Finding the Fourth Proportional to 12,167.08, 18,252.47 and 5,147.10

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Solution

The fourth proportional to 12,167.08, 18,252.47 and 5,147.10 is: 7,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.08 : 18,252.47 = 5,147.10 : x
  2. Step 2: Convert to fraction form
    12,167.08/18,252.47 = 5,147.10/x
  3. Step 3: Cross multiply
    12,167.08x = 18,252.47 × 5,147.10
  4. Step 4: Simplify right side
    12,167.08x = 93,947,301.20
  5. Step 5: Solve for x
    x = 93,947,301.20/12,167.08
  6. Step 6: Final answer
    x = 7,721.44

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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.