Home / 10,946.74-16,381.20-8,017.78

Finding the Fourth Proportional to 10,946.74, 16,381.20 and 8,017.78

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Solution

The fourth proportional to 10,946.74, 16,381.20 and 8,017.78 is: 11,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,946.74 : 16,381.20 = 8,017.78 : x
  2. Step 2: Convert to fraction form
    10,946.74/16,381.20 = 8,017.78/x
  3. Step 3: Cross multiply
    10,946.74x = 16,381.20 × 8,017.78
  4. Step 4: Simplify right side
    10,946.74x = 131,340,857.74
  5. Step 5: Solve for x
    x = 131,340,857.74/10,946.74
  6. Step 6: Final answer
    x = 11,998.17

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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.