Home / 13,499.36-20,255.28-5,176.56

Finding the Fourth Proportional to 13,499.36, 20,255.28 and 5,176.56

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Solution

The fourth proportional to 13,499.36, 20,255.28 and 5,176.56 is: 7,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.36 : 20,255.28 = 5,176.56 : x
  2. Step 2: Convert to fraction form
    13,499.36/20,255.28 = 5,176.56/x
  3. Step 3: Cross multiply
    13,499.36x = 20,255.28 × 5,176.56
  4. Step 4: Simplify right side
    13,499.36x = 104,852,672.24
  5. Step 5: Solve for x
    x = 104,852,672.24/13,499.36
  6. Step 6: Final answer
    x = 7,767.23

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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.