Home / 18,998.15-28,498.85-4,960.04

Finding the Fourth Proportional to 18,998.15, 28,498.85 and 4,960.04

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Solution

The fourth proportional to 18,998.15, 28,498.85 and 4,960.04 is: 7,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.15 : 28,498.85 = 4,960.04 : x
  2. Step 2: Convert to fraction form
    18,998.15/28,498.85 = 4,960.04/x
  3. Step 3: Cross multiply
    18,998.15x = 28,498.85 × 4,960.04
  4. Step 4: Simplify right side
    18,998.15x = 141,355,411.15
  5. Step 5: Solve for x
    x = 141,355,411.15/18,998.15
  6. Step 6: Final answer
    x = 7,440.48

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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.