Home / 12,747.24-19,122.80-6,503.85

Finding the Fourth Proportional to 12,747.24, 19,122.80 and 6,503.85

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Solution

The fourth proportional to 12,747.24, 19,122.80 and 6,503.85 is: 9,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.24 : 19,122.80 = 6,503.85 : x
  2. Step 2: Convert to fraction form
    12,747.24/19,122.80 = 6,503.85/x
  3. Step 3: Cross multiply
    12,747.24x = 19,122.80 × 6,503.85
  4. Step 4: Simplify right side
    12,747.24x = 124,371,727.17
  5. Step 5: Solve for x
    x = 124,371,727.17/12,747.24
  6. Step 6: Final answer
    x = 9,756.76

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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.