Home / 14,808.35-20,422.29-12,286.47

Finding the Fourth Proportional to 14,808.35, 20,422.29 and 12,286.47

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Solution

The fourth proportional to 14,808.35, 20,422.29 and 12,286.47 is: 16,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,808.35 : 20,422.29 = 12,286.47 : x
  2. Step 2: Convert to fraction form
    14,808.35/20,422.29 = 12,286.47/x
  3. Step 3: Cross multiply
    14,808.35x = 20,422.29 × 12,286.47
  4. Step 4: Simplify right side
    14,808.35x = 250,917,899.49
  5. Step 5: Solve for x
    x = 250,917,899.49/14,808.35
  6. Step 6: Final answer
    x = 16,944.35

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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.