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Finding the Fourth Proportional to 8,884.55, 13,322.09 and 5,187.92

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Solution

The fourth proportional to 8,884.55, 13,322.09 and 5,187.92 is: 7,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,884.55 : 13,322.09 = 5,187.92 : x
  2. Step 2: Convert to fraction form
    8,884.55/13,322.09 = 5,187.92/x
  3. Step 3: Cross multiply
    8,884.55x = 13,322.09 × 5,187.92
  4. Step 4: Simplify right side
    8,884.55x = 69,113,883.51
  5. Step 5: Solve for x
    x = 69,113,883.51/8,884.55
  6. Step 6: Final answer
    x = 7,779.11

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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.