Home / 8,272.64-11,428.80-6,173.12

Finding the Fourth Proportional to 8,272.64, 11,428.80 and 6,173.12

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Solution

The fourth proportional to 8,272.64, 11,428.80 and 6,173.12 is: 8,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.64 : 11,428.80 = 6,173.12 : x
  2. Step 2: Convert to fraction form
    8,272.64/11,428.80 = 6,173.12/x
  3. Step 3: Cross multiply
    8,272.64x = 11,428.80 × 6,173.12
  4. Step 4: Simplify right side
    8,272.64x = 70,551,353.86
  5. Step 5: Solve for x
    x = 70,551,353.86/8,272.64
  6. Step 6: Final answer
    x = 8,528.28

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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.