Home / 18,503.50-27,756.70-6,658.82

Finding the Fourth Proportional to 18,503.50, 27,756.70 and 6,658.82

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Solution

The fourth proportional to 18,503.50, 27,756.70 and 6,658.82 is: 9,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.50 : 27,756.70 = 6,658.82 : x
  2. Step 2: Convert to fraction form
    18,503.50/27,756.70 = 6,658.82/x
  3. Step 3: Cross multiply
    18,503.50x = 27,756.70 × 6,658.82
  4. Step 4: Simplify right side
    18,503.50x = 184,826,869.09
  5. Step 5: Solve for x
    x = 184,826,869.09/18,503.50
  6. Step 6: Final answer
    x = 9,988.75

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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.