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Finding the Fourth Proportional to 10,465.85, 15,682.36 and 8,899.41

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Solution

The fourth proportional to 10,465.85, 15,682.36 and 8,899.41 is: 13,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,465.85 : 15,682.36 = 8,899.41 : x
  2. Step 2: Convert to fraction form
    10,465.85/15,682.36 = 8,899.41/x
  3. Step 3: Cross multiply
    10,465.85x = 15,682.36 × 8,899.41
  4. Step 4: Simplify right side
    10,465.85x = 139,563,694.39
  5. Step 5: Solve for x
    x = 139,563,694.39/10,465.85
  6. Step 6: Final answer
    x = 13,335.16

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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.