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Finding the Fourth Proportional to 8,804.61, 13,209.98 and 5,513.81

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Solution

The fourth proportional to 8,804.61, 13,209.98 and 5,513.81 is: 8,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,804.61 : 13,209.98 = 5,513.81 : x
  2. Step 2: Convert to fraction form
    8,804.61/13,209.98 = 5,513.81/x
  3. Step 3: Cross multiply
    8,804.61x = 13,209.98 × 5,513.81
  4. Step 4: Simplify right side
    8,804.61x = 72,837,226.20
  5. Step 5: Solve for x
    x = 72,837,226.20/8,804.61
  6. Step 6: Final answer
    x = 8,272.62

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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.