Home / 13,500.32-20,256.72-5,177.56

Finding the Fourth Proportional to 13,500.32, 20,256.72 and 5,177.56

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Solution

The fourth proportional to 13,500.32, 20,256.72 and 5,177.56 is: 7,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.32 : 20,256.72 = 5,177.56 : x
  2. Step 2: Convert to fraction form
    13,500.32/20,256.72 = 5,177.56/x
  3. Step 3: Cross multiply
    13,500.32x = 20,256.72 × 5,177.56
  4. Step 4: Simplify right side
    13,500.32x = 104,880,383.20
  5. Step 5: Solve for x
    x = 104,880,383.20/13,500.32
  6. Step 6: Final answer
    x = 7,768.73

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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.