Home / 8,721.34-12,035.50-4,742.44

Finding the Fourth Proportional to 8,721.34, 12,035.50 and 4,742.44

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Solution

The fourth proportional to 8,721.34, 12,035.50 and 4,742.44 is: 6,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.34 : 12,035.50 = 4,742.44 : x
  2. Step 2: Convert to fraction form
    8,721.34/12,035.50 = 4,742.44/x
  3. Step 3: Cross multiply
    8,721.34x = 12,035.50 × 4,742.44
  4. Step 4: Simplify right side
    8,721.34x = 57,077,636.62
  5. Step 5: Solve for x
    x = 57,077,636.62/8,721.34
  6. Step 6: Final answer
    x = 6,544.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.