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Finding the Fourth Proportional to 8,578.66, 12,850.11 and 6,903.76

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Solution

The fourth proportional to 8,578.66, 12,850.11 and 6,903.76 is: 10,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.66 : 12,850.11 = 6,903.76 : x
  2. Step 2: Convert to fraction form
    8,578.66/12,850.11 = 6,903.76/x
  3. Step 3: Cross multiply
    8,578.66x = 12,850.11 × 6,903.76
  4. Step 4: Simplify right side
    8,578.66x = 88,714,075.41
  5. Step 5: Solve for x
    x = 88,714,075.41/8,578.66
  6. Step 6: Final answer
    x = 10,341.25

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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.