Home / 18,715.35-25,826.77-10,217.15

Finding the Fourth Proportional to 18,715.35, 25,826.77 and 10,217.15

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Solution

The fourth proportional to 18,715.35, 25,826.77 and 10,217.15 is: 14,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.35 : 25,826.77 = 10,217.15 : x
  2. Step 2: Convert to fraction form
    18,715.35/25,826.77 = 10,217.15/x
  3. Step 3: Cross multiply
    18,715.35x = 25,826.77 × 10,217.15
  4. Step 4: Simplify right side
    18,715.35x = 263,875,963.59
  5. Step 5: Solve for x
    x = 263,875,963.59/18,715.35
  6. Step 6: Final answer
    x = 14,099.44

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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.