Home / 8,742.96-13,116.06-2,898.36

Finding the Fourth Proportional to 8,742.96, 13,116.06 and 2,898.36

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Solution

The fourth proportional to 8,742.96, 13,116.06 and 2,898.36 is: 4,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.96 : 13,116.06 = 2,898.36 : x
  2. Step 2: Convert to fraction form
    8,742.96/13,116.06 = 2,898.36/x
  3. Step 3: Cross multiply
    8,742.96x = 13,116.06 × 2,898.36
  4. Step 4: Simplify right side
    8,742.96x = 38,015,063.66
  5. Step 5: Solve for x
    x = 38,015,063.66/8,742.96
  6. Step 6: Final answer
    x = 4,348.08

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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.