Home / 14,649.32-20,249.28-13,486.80

Finding the Fourth Proportional to 14,649.32, 20,249.28 and 13,486.80

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Solution

The fourth proportional to 14,649.32, 20,249.28 and 13,486.80 is: 18,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.32 : 20,249.28 = 13,486.80 : x
  2. Step 2: Convert to fraction form
    14,649.32/20,249.28 = 13,486.80/x
  3. Step 3: Cross multiply
    14,649.32x = 20,249.28 × 13,486.80
  4. Step 4: Simplify right side
    14,649.32x = 273,097,989.50
  5. Step 5: Solve for x
    x = 273,097,989.50/14,649.32
  6. Step 6: Final answer
    x = 18,642.37

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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.