Home / 13,737.89-20,606.61-4,377.79

Finding the Fourth Proportional to 13,737.89, 20,606.61 and 4,377.79

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Solution

The fourth proportional to 13,737.89, 20,606.61 and 4,377.79 is: 6,566.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.89 : 20,606.61 = 4,377.79 : x
  2. Step 2: Convert to fraction form
    13,737.89/20,606.61 = 4,377.79/x
  3. Step 3: Cross multiply
    13,737.89x = 20,606.61 × 4,377.79
  4. Step 4: Simplify right side
    13,737.89x = 90,211,337.45
  5. Step 5: Solve for x
    x = 90,211,337.45/13,737.89
  6. Step 6: Final answer
    x = 6,566.61

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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.