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Finding the Fourth Proportional to 12,677.80, 19,000.86 and 8,750.92

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Solution

The fourth proportional to 12,677.80, 19,000.86 and 8,750.92 is: 13,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.80 : 19,000.86 = 8,750.92 : x
  2. Step 2: Convert to fraction form
    12,677.80/19,000.86 = 8,750.92/x
  3. Step 3: Cross multiply
    12,677.80x = 19,000.86 × 8,750.92
  4. Step 4: Simplify right side
    12,677.80x = 166,275,005.79
  5. Step 5: Solve for x
    x = 166,275,005.79/12,677.80
  6. Step 6: Final answer
    x = 13,115.45

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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.