Home / 10,572.36-15,858.66-2,781.96

Finding the Fourth Proportional to 10,572.36, 15,858.66 and 2,781.96

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Solution

The fourth proportional to 10,572.36, 15,858.66 and 2,781.96 is: 4,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.36 : 15,858.66 = 2,781.96 : x
  2. Step 2: Convert to fraction form
    10,572.36/15,858.66 = 2,781.96/x
  3. Step 3: Cross multiply
    10,572.36x = 15,858.66 × 2,781.96
  4. Step 4: Simplify right side
    10,572.36x = 44,118,157.77
  5. Step 5: Solve for x
    x = 44,118,157.77/10,572.36
  6. Step 6: Final answer
    x = 4,172.97

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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.