Home / 8,742.36-13,109.51-2,818.19

Finding the Fourth Proportional to 8,742.36, 13,109.51 and 2,818.19

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Solution

The fourth proportional to 8,742.36, 13,109.51 and 2,818.19 is: 4,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.36 : 13,109.51 = 2,818.19 : x
  2. Step 2: Convert to fraction form
    8,742.36/13,109.51 = 2,818.19/x
  3. Step 3: Cross multiply
    8,742.36x = 13,109.51 × 2,818.19
  4. Step 4: Simplify right side
    8,742.36x = 36,945,010.35
  5. Step 5: Solve for x
    x = 36,945,010.35/8,742.36
  6. Step 6: Final answer
    x = 4,225.98

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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.