Home / 8,531.28-11,767.08-5,697.24

Finding the Fourth Proportional to 8,531.28, 11,767.08 and 5,697.24

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Solution

The fourth proportional to 8,531.28, 11,767.08 and 5,697.24 is: 7,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.28 : 11,767.08 = 5,697.24 : x
  2. Step 2: Convert to fraction form
    8,531.28/11,767.08 = 5,697.24/x
  3. Step 3: Cross multiply
    8,531.28x = 11,767.08 × 5,697.24
  4. Step 4: Simplify right side
    8,531.28x = 67,039,878.86
  5. Step 5: Solve for x
    x = 67,039,878.86/8,531.28
  6. Step 6: Final answer
    x = 7,858.13

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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.