Home / 12,133.86-16,744.56-6,829.20

Finding the Fourth Proportional to 12,133.86, 16,744.56 and 6,829.20

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Solution

The fourth proportional to 12,133.86, 16,744.56 and 6,829.20 is: 9,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.86 : 16,744.56 = 6,829.20 : x
  2. Step 2: Convert to fraction form
    12,133.86/16,744.56 = 6,829.20/x
  3. Step 3: Cross multiply
    12,133.86x = 16,744.56 × 6,829.20
  4. Step 4: Simplify right side
    12,133.86x = 114,351,949.15
  5. Step 5: Solve for x
    x = 114,351,949.15/12,133.86
  6. Step 6: Final answer
    x = 9,424.20

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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.