Home / 12,262.68-18,376.43-6,986.76

Finding the Fourth Proportional to 12,262.68, 18,376.43 and 6,986.76

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Solution

The fourth proportional to 12,262.68, 18,376.43 and 6,986.76 is: 10,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.68 : 18,376.43 = 6,986.76 : x
  2. Step 2: Convert to fraction form
    12,262.68/18,376.43 = 6,986.76/x
  3. Step 3: Cross multiply
    12,262.68x = 18,376.43 × 6,986.76
  4. Step 4: Simplify right side
    12,262.68x = 128,391,671.13
  5. Step 5: Solve for x
    x = 128,391,671.13/12,262.68
  6. Step 6: Final answer
    x = 10,470.12

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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.