Home / 13,343.72-20,019.06-3,983.74

Finding the Fourth Proportional to 13,343.72, 20,019.06 and 3,983.74

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Solution

The fourth proportional to 13,343.72, 20,019.06 and 3,983.74 is: 5,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.72 : 20,019.06 = 3,983.74 : x
  2. Step 2: Convert to fraction form
    13,343.72/20,019.06 = 3,983.74/x
  3. Step 3: Cross multiply
    13,343.72x = 20,019.06 × 3,983.74
  4. Step 4: Simplify right side
    13,343.72x = 79,750,699.71
  5. Step 5: Solve for x
    x = 79,750,699.71/13,343.72
  6. Step 6: Final answer
    x = 5,976.65

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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.