Home / 13,558.68-20,334.96-6,888.44

Finding the Fourth Proportional to 13,558.68, 20,334.96 and 6,888.44

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Solution

The fourth proportional to 13,558.68, 20,334.96 and 6,888.44 is: 10,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.68 : 20,334.96 = 6,888.44 : x
  2. Step 2: Convert to fraction form
    13,558.68/20,334.96 = 6,888.44/x
  3. Step 3: Cross multiply
    13,558.68x = 20,334.96 × 6,888.44
  4. Step 4: Simplify right side
    13,558.68x = 140,076,151.86
  5. Step 5: Solve for x
    x = 140,076,151.86/13,558.68
  6. Step 6: Final answer
    x = 10,331.11

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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.