Home / 13,507.86-20,270.68-4,742.54

Finding the Fourth Proportional to 13,507.86, 20,270.68 and 4,742.54

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Solution

The fourth proportional to 13,507.86, 20,270.68 and 4,742.54 is: 7,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.86 : 20,270.68 = 4,742.54 : x
  2. Step 2: Convert to fraction form
    13,507.86/20,270.68 = 4,742.54/x
  3. Step 3: Cross multiply
    13,507.86x = 20,270.68 × 4,742.54
  4. Step 4: Simplify right side
    13,507.86x = 96,134,510.73
  5. Step 5: Solve for x
    x = 96,134,510.73/13,507.86
  6. Step 6: Final answer
    x = 7,116.93

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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.