Home / 13,669.12-20,503.88-4,308.96

Finding the Fourth Proportional to 13,669.12, 20,503.88 and 4,308.96

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Solution

The fourth proportional to 13,669.12, 20,503.88 and 4,308.96 is: 6,463.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.12 : 20,503.88 = 4,308.96 : x
  2. Step 2: Convert to fraction form
    13,669.12/20,503.88 = 4,308.96/x
  3. Step 3: Cross multiply
    13,669.12x = 20,503.88 × 4,308.96
  4. Step 4: Simplify right side
    13,669.12x = 88,350,398.76
  5. Step 5: Solve for x
    x = 88,350,398.76/13,669.12
  6. Step 6: Final answer
    x = 6,463.50

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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.