Home / 13,748.06-20,626.74-5,423.28

Finding the Fourth Proportional to 13,748.06, 20,626.74 and 5,423.28

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Solution

The fourth proportional to 13,748.06, 20,626.74 and 5,423.28 is: 8,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.06 : 20,626.74 = 5,423.28 : x
  2. Step 2: Convert to fraction form
    13,748.06/20,626.74 = 5,423.28/x
  3. Step 3: Cross multiply
    13,748.06x = 20,626.74 × 5,423.28
  4. Step 4: Simplify right side
    13,748.06x = 111,864,586.51
  5. Step 5: Solve for x
    x = 111,864,586.51/13,748.06
  6. Step 6: Final answer
    x = 8,136.76

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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.