Home / 13,378.92-20,062.12-5,983.40

Finding the Fourth Proportional to 13,378.92, 20,062.12 and 5,983.40

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Solution

The fourth proportional to 13,378.92, 20,062.12 and 5,983.40 is: 8,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.92 : 20,062.12 = 5,983.40 : x
  2. Step 2: Convert to fraction form
    13,378.92/20,062.12 = 5,983.40/x
  3. Step 3: Cross multiply
    13,378.92x = 20,062.12 × 5,983.40
  4. Step 4: Simplify right side
    13,378.92x = 120,039,688.81
  5. Step 5: Solve for x
    x = 120,039,688.81/13,378.92
  6. Step 6: Final answer
    x = 8,972.30

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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.