Home / 13,048.55-18,006.95-7,747.73

Finding the Fourth Proportional to 13,048.55, 18,006.95 and 7,747.73

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Solution

The fourth proportional to 13,048.55, 18,006.95 and 7,747.73 is: 10,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.55 : 18,006.95 = 7,747.73 : x
  2. Step 2: Convert to fraction form
    13,048.55/18,006.95 = 7,747.73/x
  3. Step 3: Cross multiply
    13,048.55x = 18,006.95 × 7,747.73
  4. Step 4: Simplify right side
    13,048.55x = 139,512,947.98
  5. Step 5: Solve for x
    x = 139,512,947.98/13,048.55
  6. Step 6: Final answer
    x = 10,691.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.