Home / 12,127.60-16,736.82-6,822.76

Finding the Fourth Proportional to 12,127.60, 16,736.82 and 6,822.76

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Solution

The fourth proportional to 12,127.60, 16,736.82 and 6,822.76 is: 9,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.60 : 16,736.82 = 6,822.76 : x
  2. Step 2: Convert to fraction form
    12,127.60/16,736.82 = 6,822.76/x
  3. Step 3: Cross multiply
    12,127.60x = 16,736.82 × 6,822.76
  4. Step 4: Simplify right side
    12,127.60x = 114,191,306.02
  5. Step 5: Solve for x
    x = 114,191,306.02/12,127.60
  6. Step 6: Final answer
    x = 9,415.82

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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.