Home / 12,278.71-18,426.13-6,735.94

Finding the Fourth Proportional to 12,278.71, 18,426.13 and 6,735.94

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Solution

The fourth proportional to 12,278.71, 18,426.13 and 6,735.94 is: 10,108.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.71 : 18,426.13 = 6,735.94 : x
  2. Step 2: Convert to fraction form
    12,278.71/18,426.13 = 6,735.94/x
  3. Step 3: Cross multiply
    12,278.71x = 18,426.13 × 6,735.94
  4. Step 4: Simplify right side
    12,278.71x = 124,117,306.11
  5. Step 5: Solve for x
    x = 124,117,306.11/12,278.71
  6. Step 6: Final answer
    x = 10,108.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.