Home / 13,653.24-20,470.79-5,334.05

Finding the Fourth Proportional to 13,653.24, 20,470.79 and 5,334.05

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Solution

The fourth proportional to 13,653.24, 20,470.79 and 5,334.05 is: 7,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.24 : 20,470.79 = 5,334.05 : x
  2. Step 2: Convert to fraction form
    13,653.24/20,470.79 = 5,334.05/x
  3. Step 3: Cross multiply
    13,653.24x = 20,470.79 × 5,334.05
  4. Step 4: Simplify right side
    13,653.24x = 109,192,088.38
  5. Step 5: Solve for x
    x = 109,192,088.38/13,653.24
  6. Step 6: Final answer
    x = 7,997.52

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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.