Home / 13,249.21-18,291.02-10,217.70

Finding the Fourth Proportional to 13,249.21, 18,291.02 and 10,217.70

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Solution

The fourth proportional to 13,249.21, 18,291.02 and 10,217.70 is: 14,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.21 : 18,291.02 = 10,217.70 : x
  2. Step 2: Convert to fraction form
    13,249.21/18,291.02 = 10,217.70/x
  3. Step 3: Cross multiply
    13,249.21x = 18,291.02 × 10,217.70
  4. Step 4: Simplify right side
    13,249.21x = 186,892,155.05
  5. Step 5: Solve for x
    x = 186,892,155.05/13,249.21
  6. Step 6: Final answer
    x = 14,105.91

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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.