Home / 18,635.11-25,715.68-10,137.24

Finding the Fourth Proportional to 18,635.11, 25,715.68 and 10,137.24

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Solution

The fourth proportional to 18,635.11, 25,715.68 and 10,137.24 is: 13,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.11 : 25,715.68 = 10,137.24 : x
  2. Step 2: Convert to fraction form
    18,635.11/25,715.68 = 10,137.24/x
  3. Step 3: Cross multiply
    18,635.11x = 25,715.68 × 10,137.24
  4. Step 4: Simplify right side
    18,635.11x = 260,685,994.58
  5. Step 5: Solve for x
    x = 260,685,994.58/18,635.11
  6. Step 6: Final answer
    x = 13,988.97

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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.