Home / 10,081.66-13,913.32-5,605.38

Finding the Fourth Proportional to 10,081.66, 13,913.32 and 5,605.38

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Solution

The fourth proportional to 10,081.66, 13,913.32 and 5,605.38 is: 7,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.66 : 13,913.32 = 5,605.38 : x
  2. Step 2: Convert to fraction form
    10,081.66/13,913.32 = 5,605.38/x
  3. Step 3: Cross multiply
    10,081.66x = 13,913.32 × 5,605.38
  4. Step 4: Simplify right side
    10,081.66x = 77,989,445.66
  5. Step 5: Solve for x
    x = 77,989,445.66/10,081.66
  6. Step 6: Final answer
    x = 7,735.78

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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.