Home / 12,747.11-19,122.61-6,503.72

Finding the Fourth Proportional to 12,747.11, 19,122.61 and 6,503.72

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Solution

The fourth proportional to 12,747.11, 19,122.61 and 6,503.72 is: 9,756.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.11 : 19,122.61 = 6,503.72 : x
  2. Step 2: Convert to fraction form
    12,747.11/19,122.61 = 6,503.72/x
  3. Step 3: Cross multiply
    12,747.11x = 19,122.61 × 6,503.72
  4. Step 4: Simplify right side
    12,747.11x = 124,368,085.34
  5. Step 5: Solve for x
    x = 124,368,085.34/12,747.11
  6. Step 6: Final answer
    x = 9,756.57

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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.