Home / 18,279.14-25,225.63-10,321.43

Finding the Fourth Proportional to 18,279.14, 25,225.63 and 10,321.43

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Solution

The fourth proportional to 18,279.14, 25,225.63 and 10,321.43 is: 14,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.14 : 25,225.63 = 10,321.43 : x
  2. Step 2: Convert to fraction form
    18,279.14/25,225.63 = 10,321.43/x
  3. Step 3: Cross multiply
    18,279.14x = 25,225.63 × 10,321.43
  4. Step 4: Simplify right side
    18,279.14x = 260,364,422.32
  5. Step 5: Solve for x
    x = 260,364,422.32/18,279.14
  6. Step 6: Final answer
    x = 14,243.80

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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.