Home / 13,439.13-20,161.53-4,673.72

Finding the Fourth Proportional to 13,439.13, 20,161.53 and 4,673.72

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Solution

The fourth proportional to 13,439.13, 20,161.53 and 4,673.72 is: 7,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.13 : 20,161.53 = 4,673.72 : x
  2. Step 2: Convert to fraction form
    13,439.13/20,161.53 = 4,673.72/x
  3. Step 3: Cross multiply
    13,439.13x = 20,161.53 × 4,673.72
  4. Step 4: Simplify right side
    13,439.13x = 94,229,245.18
  5. Step 5: Solve for x
    x = 94,229,245.18/13,439.13
  6. Step 6: Final answer
    x = 7,011.56

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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.