Home / 13,177.68-18,184.98-8,072.41

Finding the Fourth Proportional to 13,177.68, 18,184.98 and 8,072.41

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Solution

The fourth proportional to 13,177.68, 18,184.98 and 8,072.41 is: 11,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.68 : 18,184.98 = 8,072.41 : x
  2. Step 2: Convert to fraction form
    13,177.68/18,184.98 = 8,072.41/x
  3. Step 3: Cross multiply
    13,177.68x = 18,184.98 × 8,072.41
  4. Step 4: Simplify right side
    13,177.68x = 146,796,483.11
  5. Step 5: Solve for x
    x = 146,796,483.11/13,177.68
  6. Step 6: Final answer
    x = 11,139.78

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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.