Home / 18,717.20-25,829.79-10,219.34

Finding the Fourth Proportional to 18,717.20, 25,829.79 and 10,219.34

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Solution

The fourth proportional to 18,717.20, 25,829.79 and 10,219.34 is: 14,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.20 : 25,829.79 = 10,219.34 : x
  2. Step 2: Convert to fraction form
    18,717.20/25,829.79 = 10,219.34/x
  3. Step 3: Cross multiply
    18,717.20x = 25,829.79 × 10,219.34
  4. Step 4: Simplify right side
    18,717.20x = 263,963,276.99
  5. Step 5: Solve for x
    x = 263,963,276.99/18,717.20
  6. Step 6: Final answer
    x = 14,102.72

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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.