Home / 12,748.56-19,116.26-5,722.55

Finding the Fourth Proportional to 12,748.56, 19,116.26 and 5,722.55

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Solution

The fourth proportional to 12,748.56, 19,116.26 and 5,722.55 is: 8,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.56 : 19,116.26 = 5,722.55 : x
  2. Step 2: Convert to fraction form
    12,748.56/19,116.26 = 5,722.55/x
  3. Step 3: Cross multiply
    12,748.56x = 19,116.26 × 5,722.55
  4. Step 4: Simplify right side
    12,748.56x = 109,393,658.08
  5. Step 5: Solve for x
    x = 109,393,658.08/12,748.56
  6. Step 6: Final answer
    x = 8,580.87

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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.