Home / 10,983.64-15,155.78-6,674.48

Finding the Fourth Proportional to 10,983.64, 15,155.78 and 6,674.48

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Solution

The fourth proportional to 10,983.64, 15,155.78 and 6,674.48 is: 9,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.64 : 15,155.78 = 6,674.48 : x
  2. Step 2: Convert to fraction form
    10,983.64/15,155.78 = 6,674.48/x
  3. Step 3: Cross multiply
    10,983.64x = 15,155.78 × 6,674.48
  4. Step 4: Simplify right side
    10,983.64x = 101,157,005.07
  5. Step 5: Solve for x
    x = 101,157,005.07/10,983.64
  6. Step 6: Final answer
    x = 9,209.79

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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.