Home / 12,156.48-16,767-9,172.44

Finding the Fourth Proportional to 12,156.48, 16,767 and 9,172.44

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Solution

The fourth proportional to 12,156.48, 16,767 and 9,172.44 is: 12,651.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.48 : 16,767 = 9,172.44 : x
  2. Step 2: Convert to fraction form
    12,156.48/16,767 = 9,172.44/x
  3. Step 3: Cross multiply
    12,156.48x = 16,767 × 9,172.44
  4. Step 4: Simplify right side
    12,156.48x = 153,794,301.48
  5. Step 5: Solve for x
    x = 153,794,301.48/12,156.48
  6. Step 6: Final answer
    x = 12,651.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.