Home / 12,147.36-16,757.62-7,108.49

Finding the Fourth Proportional to 12,147.36, 16,757.62 and 7,108.49

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Solution

The fourth proportional to 12,147.36, 16,757.62 and 7,108.49 is: 9,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.36 : 16,757.62 = 7,108.49 : x
  2. Step 2: Convert to fraction form
    12,147.36/16,757.62 = 7,108.49/x
  3. Step 3: Cross multiply
    12,147.36x = 16,757.62 × 7,108.49
  4. Step 4: Simplify right side
    12,147.36x = 119,121,312.62
  5. Step 5: Solve for x
    x = 119,121,312.62/12,147.36
  6. Step 6: Final answer
    x = 9,806.36

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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.