Home / 18,318.07-25,279.22-10,765.40

Finding the Fourth Proportional to 18,318.07, 25,279.22 and 10,765.40

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Solution

The fourth proportional to 18,318.07, 25,279.22 and 10,765.40 is: 14,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.07 : 25,279.22 = 10,765.40 : x
  2. Step 2: Convert to fraction form
    18,318.07/25,279.22 = 10,765.40/x
  3. Step 3: Cross multiply
    18,318.07x = 25,279.22 × 10,765.40
  4. Step 4: Simplify right side
    18,318.07x = 272,140,914.99
  5. Step 5: Solve for x
    x = 272,140,914.99/18,318.07
  6. Step 6: Final answer
    x = 14,856.42

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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.