Home / 13,398.79-20,096.46-3,538.81

Finding the Fourth Proportional to 13,398.79, 20,096.46 and 3,538.81

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Solution

The fourth proportional to 13,398.79, 20,096.46 and 3,538.81 is: 5,307.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.79 : 20,096.46 = 3,538.81 : x
  2. Step 2: Convert to fraction form
    13,398.79/20,096.46 = 3,538.81/x
  3. Step 3: Cross multiply
    13,398.79x = 20,096.46 × 3,538.81
  4. Step 4: Simplify right side
    13,398.79x = 71,117,553.61
  5. Step 5: Solve for x
    x = 71,117,553.61/13,398.79
  6. Step 6: Final answer
    x = 5,307.76

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1.5x scale

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.