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Finding the Fourth Proportional to 8,677.80, 13,016.40 and 2,437.80

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Solution

The fourth proportional to 8,677.80, 13,016.40 and 2,437.80 is: 3,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.80 : 13,016.40 = 2,437.80 : x
  2. Step 2: Convert to fraction form
    8,677.80/13,016.40 = 2,437.80/x
  3. Step 3: Cross multiply
    8,677.80x = 13,016.40 × 2,437.80
  4. Step 4: Simplify right side
    8,677.80x = 31,731,379.92
  5. Step 5: Solve for x
    x = 31,731,379.92/8,677.80
  6. Step 6: Final answer
    x = 3,656.62

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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.