Home / 13,439.92-20,160.15-4,891.07

Finding the Fourth Proportional to 13,439.92, 20,160.15 and 4,891.07

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Solution

The fourth proportional to 13,439.92, 20,160.15 and 4,891.07 is: 7,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.92 : 20,160.15 = 4,891.07 : x
  2. Step 2: Convert to fraction form
    13,439.92/20,160.15 = 4,891.07/x
  3. Step 3: Cross multiply
    13,439.92x = 20,160.15 × 4,891.07
  4. Step 4: Simplify right side
    13,439.92x = 98,604,604.06
  5. Step 5: Solve for x
    x = 98,604,604.06/13,439.92
  6. Step 6: Final answer
    x = 7,336.70

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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.