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Finding the Fourth Proportional to 8,701.88, 13,055.88 and 2,858.96

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Solution

The fourth proportional to 8,701.88, 13,055.88 and 2,858.96 is: 4,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.88 : 13,055.88 = 2,858.96 : x
  2. Step 2: Convert to fraction form
    8,701.88/13,055.88 = 2,858.96/x
  3. Step 3: Cross multiply
    8,701.88x = 13,055.88 × 2,858.96
  4. Step 4: Simplify right side
    8,701.88x = 37,326,238.68
  5. Step 5: Solve for x
    x = 37,326,238.68/8,701.88
  6. Step 6: Final answer
    x = 4,289.45

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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.