Home / 13,910.34-20,854.53-6,885.39

Finding the Fourth Proportional to 13,910.34, 20,854.53 and 6,885.39

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Solution

The fourth proportional to 13,910.34, 20,854.53 and 6,885.39 is: 10,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.34 : 20,854.53 = 6,885.39 : x
  2. Step 2: Convert to fraction form
    13,910.34/20,854.53 = 6,885.39/x
  3. Step 3: Cross multiply
    13,910.34x = 20,854.53 × 6,885.39
  4. Step 4: Simplify right side
    13,910.34x = 143,591,572.32
  5. Step 5: Solve for x
    x = 143,591,572.32/13,910.34
  6. Step 6: Final answer
    x = 10,322.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.