Home / 13,523.76-20,275.92-5,728.32

Finding the Fourth Proportional to 13,523.76, 20,275.92 and 5,728.32

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Solution

The fourth proportional to 13,523.76, 20,275.92 and 5,728.32 is: 8,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.76 : 20,275.92 = 5,728.32 : x
  2. Step 2: Convert to fraction form
    13,523.76/20,275.92 = 5,728.32/x
  3. Step 3: Cross multiply
    13,523.76x = 20,275.92 × 5,728.32
  4. Step 4: Simplify right side
    13,523.76x = 116,146,958.05
  5. Step 5: Solve for x
    x = 116,146,958.05/13,523.76
  6. Step 6: Final answer
    x = 8,588.36

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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.