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Finding the Fourth Proportional to 8,178.44, 12,267.50 and 2,335

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Solution

The fourth proportional to 8,178.44, 12,267.50 and 2,335 is: 3,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.44 : 12,267.50 = 2,335 : x
  2. Step 2: Convert to fraction form
    8,178.44/12,267.50 = 2,335/x
  3. Step 3: Cross multiply
    8,178.44x = 12,267.50 × 2,335
  4. Step 4: Simplify right side
    8,178.44x = 28,644,612.50
  5. Step 5: Solve for x
    x = 28,644,612.50/8,178.44
  6. Step 6: Final answer
    x = 3,502.45

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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.