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Finding the Fourth Proportional to 8,368.86, 12,538.89 and 5,899.26

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Solution

The fourth proportional to 8,368.86, 12,538.89 and 5,899.26 is: 8,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.86 : 12,538.89 = 5,899.26 : x
  2. Step 2: Convert to fraction form
    8,368.86/12,538.89 = 5,899.26/x
  3. Step 3: Cross multiply
    8,368.86x = 12,538.89 × 5,899.26
  4. Step 4: Simplify right side
    8,368.86x = 73,970,172.22
  5. Step 5: Solve for x
    x = 73,970,172.22/8,368.86
  6. Step 6: Final answer
    x = 8,838.74

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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.