Home / 10,981.98-15,161.67-6,795.90

Finding the Fourth Proportional to 10,981.98, 15,161.67 and 6,795.90

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Solution

The fourth proportional to 10,981.98, 15,161.67 and 6,795.90 is: 9,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.98 : 15,161.67 = 6,795.90 : x
  2. Step 2: Convert to fraction form
    10,981.98/15,161.67 = 6,795.90/x
  3. Step 3: Cross multiply
    10,981.98x = 15,161.67 × 6,795.90
  4. Step 4: Simplify right side
    10,981.98x = 103,037,193.15
  5. Step 5: Solve for x
    x = 103,037,193.15/10,981.98
  6. Step 6: Final answer
    x = 9,382.39

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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.