Home / 12,278.02-16,943.66-6,689.02

Finding the Fourth Proportional to 12,278.02, 16,943.66 and 6,689.02

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Solution

The fourth proportional to 12,278.02, 16,943.66 and 6,689.02 is: 9,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.02 : 16,943.66 = 6,689.02 : x
  2. Step 2: Convert to fraction form
    12,278.02/16,943.66 = 6,689.02/x
  3. Step 3: Cross multiply
    12,278.02x = 16,943.66 × 6,689.02
  4. Step 4: Simplify right side
    12,278.02x = 113,336,412.62
  5. Step 5: Solve for x
    x = 113,336,412.62/12,278.02
  6. Step 6: Final answer
    x = 9,230.84

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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.