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Finding the Fourth Proportional to 8,893.32, 13,339.96 and 7,865.43

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Solution

The fourth proportional to 8,893.32, 13,339.96 and 7,865.43 is: 11,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.32 : 13,339.96 = 7,865.43 : x
  2. Step 2: Convert to fraction form
    8,893.32/13,339.96 = 7,865.43/x
  3. Step 3: Cross multiply
    8,893.32x = 13,339.96 × 7,865.43
  4. Step 4: Simplify right side
    8,893.32x = 104,924,521.58
  5. Step 5: Solve for x
    x = 104,924,521.58/8,893.32
  6. Step 6: Final answer
    x = 11,798.13

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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.