Home / 12,278.83-16,944.98-6,689.83

Finding the Fourth Proportional to 12,278.83, 16,944.98 and 6,689.83

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Solution

The fourth proportional to 12,278.83, 16,944.98 and 6,689.83 is: 9,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.83 : 16,944.98 = 6,689.83 : x
  2. Step 2: Convert to fraction form
    12,278.83/16,944.98 = 6,689.83/x
  3. Step 3: Cross multiply
    12,278.83x = 16,944.98 × 6,689.83
  4. Step 4: Simplify right side
    12,278.83x = 113,359,035.55
  5. Step 5: Solve for x
    x = 113,359,035.55/12,278.83
  6. Step 6: Final answer
    x = 9,232.07

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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.