Home / 13,685.06-20,530.48-4,327.76

Finding the Fourth Proportional to 13,685.06, 20,530.48 and 4,327.76

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Solution

The fourth proportional to 13,685.06, 20,530.48 and 4,327.76 is: 6,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.06 : 20,530.48 = 4,327.76 : x
  2. Step 2: Convert to fraction form
    13,685.06/20,530.48 = 4,327.76/x
  3. Step 3: Cross multiply
    13,685.06x = 20,530.48 × 4,327.76
  4. Step 4: Simplify right side
    13,685.06x = 88,850,990.12
  5. Step 5: Solve for x
    x = 88,850,990.12/13,685.06
  6. Step 6: Final answer
    x = 6,492.55

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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.