Home / 13,500.86-20,255.18-4,142.25

Finding the Fourth Proportional to 13,500.86, 20,255.18 and 4,142.25

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Solution

The fourth proportional to 13,500.86, 20,255.18 and 4,142.25 is: 6,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.86 : 20,255.18 = 4,142.25 : x
  2. Step 2: Convert to fraction form
    13,500.86/20,255.18 = 4,142.25/x
  3. Step 3: Cross multiply
    13,500.86x = 20,255.18 × 4,142.25
  4. Step 4: Simplify right side
    13,500.86x = 83,901,998.64
  5. Step 5: Solve for x
    x = 83,901,998.64/13,500.86
  6. Step 6: Final answer
    x = 6,214.57

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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.