Home / 13,279.44-19,927.48-12,275.60

Finding the Fourth Proportional to 13,279.44, 19,927.48 and 12,275.60

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Solution

The fourth proportional to 13,279.44, 19,927.48 and 12,275.60 is: 18,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.44 : 19,927.48 = 12,275.60 : x
  2. Step 2: Convert to fraction form
    13,279.44/19,927.48 = 12,275.60/x
  3. Step 3: Cross multiply
    13,279.44x = 19,927.48 × 12,275.60
  4. Step 4: Simplify right side
    13,279.44x = 244,621,773.49
  5. Step 5: Solve for x
    x = 244,621,773.49/13,279.44
  6. Step 6: Final answer
    x = 18,421.09

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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.