Home / 18,717.92-25,830.32-10,219.72

Finding the Fourth Proportional to 18,717.92, 25,830.32 and 10,219.72

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Solution

The fourth proportional to 18,717.92, 25,830.32 and 10,219.72 is: 14,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.92 : 25,830.32 = 10,219.72 : x
  2. Step 2: Convert to fraction form
    18,717.92/25,830.32 = 10,219.72/x
  3. Step 3: Cross multiply
    18,717.92x = 25,830.32 × 10,219.72
  4. Step 4: Simplify right side
    18,717.92x = 263,978,637.91
  5. Step 5: Solve for x
    x = 263,978,637.91/18,717.92
  6. Step 6: Final answer
    x = 14,102.99

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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.