Home / 8,578.32-12,838.26-7,193.22

Finding the Fourth Proportional to 8,578.32, 12,838.26 and 7,193.22

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Solution

The fourth proportional to 8,578.32, 12,838.26 and 7,193.22 is: 10,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.32 : 12,838.26 = 7,193.22 : x
  2. Step 2: Convert to fraction form
    8,578.32/12,838.26 = 7,193.22/x
  3. Step 3: Cross multiply
    8,578.32x = 12,838.26 × 7,193.22
  4. Step 4: Simplify right side
    8,578.32x = 92,348,428.60
  5. Step 5: Solve for x
    x = 92,348,428.60/8,578.32
  6. Step 6: Final answer
    x = 10,765.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.