Home / 13,279.37-18,337.31-8,252.13

Finding the Fourth Proportional to 13,279.37, 18,337.31 and 8,252.13

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Solution

The fourth proportional to 13,279.37, 18,337.31 and 8,252.13 is: 11,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.37 : 18,337.31 = 8,252.13 : x
  2. Step 2: Convert to fraction form
    13,279.37/18,337.31 = 8,252.13/x
  3. Step 3: Cross multiply
    13,279.37x = 18,337.31 × 8,252.13
  4. Step 4: Simplify right side
    13,279.37x = 151,321,824.71
  5. Step 5: Solve for x
    x = 151,321,824.71/13,279.37
  6. Step 6: Final answer
    x = 11,395.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.