Home / 13,568.63-20,358.76-6,999.42

Finding the Fourth Proportional to 13,568.63, 20,358.76 and 6,999.42

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Solution

The fourth proportional to 13,568.63, 20,358.76 and 6,999.42 is: 10,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.63 : 20,358.76 = 6,999.42 : x
  2. Step 2: Convert to fraction form
    13,568.63/20,358.76 = 6,999.42/x
  3. Step 3: Cross multiply
    13,568.63x = 20,358.76 × 6,999.42
  4. Step 4: Simplify right side
    13,568.63x = 142,499,583.89
  5. Step 5: Solve for x
    x = 142,499,583.89/13,568.63
  6. Step 6: Final answer
    x = 10,502.14

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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.