Home / 11,262.30-16,896.87-7,981.74

Finding the Fourth Proportional to 11,262.30, 16,896.87 and 7,981.74

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Solution

The fourth proportional to 11,262.30, 16,896.87 and 7,981.74 is: 11,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,262.30 : 16,896.87 = 7,981.74 : x
  2. Step 2: Convert to fraction form
    11,262.30/16,896.87 = 7,981.74/x
  3. Step 3: Cross multiply
    11,262.30x = 16,896.87 × 7,981.74
  4. Step 4: Simplify right side
    11,262.30x = 134,866,423.15
  5. Step 5: Solve for x
    x = 134,866,423.15/11,262.30
  6. Step 6: Final answer
    x = 11,975.03

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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.