Home / 12,274.12-16,938.18-6,685

Finding the Fourth Proportional to 12,274.12, 16,938.18 and 6,685

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Solution

The fourth proportional to 12,274.12, 16,938.18 and 6,685 is: 9,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.12 : 16,938.18 = 6,685 : x
  2. Step 2: Convert to fraction form
    12,274.12/16,938.18 = 6,685/x
  3. Step 3: Cross multiply
    12,274.12x = 16,938.18 × 6,685
  4. Step 4: Simplify right side
    12,274.12x = 113,231,733.30
  5. Step 5: Solve for x
    x = 113,231,733.30/12,274.12
  6. Step 6: Final answer
    x = 9,225.24

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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.