Home / 12,147.15-16,767.77-9,495.42

Finding the Fourth Proportional to 12,147.15, 16,767.77 and 9,495.42

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Solution

The fourth proportional to 12,147.15, 16,767.77 and 9,495.42 is: 13,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.15 : 16,767.77 = 9,495.42 : x
  2. Step 2: Convert to fraction form
    12,147.15/16,767.77 = 9,495.42/x
  3. Step 3: Cross multiply
    12,147.15x = 16,767.77 × 9,495.42
  4. Step 4: Simplify right side
    12,147.15x = 159,217,018.61
  5. Step 5: Solve for x
    x = 159,217,018.61/12,147.15
  6. Step 6: Final answer
    x = 13,107.36

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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.