Home / 8,217.59-11,328.32-6,539.72

Finding the Fourth Proportional to 8,217.59, 11,328.32 and 6,539.72

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Solution

The fourth proportional to 8,217.59, 11,328.32 and 6,539.72 is: 9,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.59 : 11,328.32 = 6,539.72 : x
  2. Step 2: Convert to fraction form
    8,217.59/11,328.32 = 6,539.72/x
  3. Step 3: Cross multiply
    8,217.59x = 11,328.32 × 6,539.72
  4. Step 4: Simplify right side
    8,217.59x = 74,084,008.17
  5. Step 5: Solve for x
    x = 74,084,008.17/8,217.59
  6. Step 6: Final answer
    x = 9,015.30

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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.