Home / 13,721.07-20,586.54-5,396.48

Finding the Fourth Proportional to 13,721.07, 20,586.54 and 5,396.48

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Solution

The fourth proportional to 13,721.07, 20,586.54 and 5,396.48 is: 8,096.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.07 : 20,586.54 = 5,396.48 : x
  2. Step 2: Convert to fraction form
    13,721.07/20,586.54 = 5,396.48/x
  3. Step 3: Cross multiply
    13,721.07x = 20,586.54 × 5,396.48
  4. Step 4: Simplify right side
    13,721.07x = 111,094,748.45
  5. Step 5: Solve for x
    x = 111,094,748.45/13,721.07
  6. Step 6: Final answer
    x = 8,096.65

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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.