Home / 12,212.32-16,851.36-7,175.92

Finding the Fourth Proportional to 12,212.32, 16,851.36 and 7,175.92

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Solution

The fourth proportional to 12,212.32, 16,851.36 and 7,175.92 is: 9,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.32 : 16,851.36 = 7,175.92 : x
  2. Step 2: Convert to fraction form
    12,212.32/16,851.36 = 7,175.92/x
  3. Step 3: Cross multiply
    12,212.32x = 16,851.36 × 7,175.92
  4. Step 4: Simplify right side
    12,212.32x = 120,924,011.25
  5. Step 5: Solve for x
    x = 120,924,011.25/12,212.32
  6. Step 6: Final answer
    x = 9,901.81

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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.