Home / 18,715.72-25,826.58-10,216.15

Finding the Fourth Proportional to 18,715.72, 25,826.58 and 10,216.15

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Solution

The fourth proportional to 18,715.72, 25,826.58 and 10,216.15 is: 14,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.72 : 25,826.58 = 10,216.15 : x
  2. Step 2: Convert to fraction form
    18,715.72/25,826.58 = 10,216.15/x
  3. Step 3: Cross multiply
    18,715.72x = 25,826.58 × 10,216.15
  4. Step 4: Simplify right side
    18,715.72x = 263,848,086.13
  5. Step 5: Solve for x
    x = 263,848,086.13/18,715.72
  6. Step 6: Final answer
    x = 14,097.68

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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.