Home / 9,983.96-13,778.64-5,508.56

Finding the Fourth Proportional to 9,983.96, 13,778.64 and 5,508.56

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Solution

The fourth proportional to 9,983.96, 13,778.64 and 5,508.56 is: 7,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.96 : 13,778.64 = 5,508.56 : x
  2. Step 2: Convert to fraction form
    9,983.96/13,778.64 = 5,508.56/x
  3. Step 3: Cross multiply
    9,983.96x = 13,778.64 × 5,508.56
  4. Step 4: Simplify right side
    9,983.96x = 75,900,465.16
  5. Step 5: Solve for x
    x = 75,900,465.16/9,983.96
  6. Step 6: Final answer
    x = 7,602.24

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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.