Home / 18,491.43-25,518.20-10,107.93

Finding the Fourth Proportional to 18,491.43, 25,518.20 and 10,107.93

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Solution

The fourth proportional to 18,491.43, 25,518.20 and 10,107.93 is: 13,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.43 : 25,518.20 = 10,107.93 : x
  2. Step 2: Convert to fraction form
    18,491.43/25,518.20 = 10,107.93/x
  3. Step 3: Cross multiply
    18,491.43x = 25,518.20 × 10,107.93
  4. Step 4: Simplify right side
    18,491.43x = 257,936,128.79
  5. Step 5: Solve for x
    x = 257,936,128.79/18,491.43
  6. Step 6: Final answer
    x = 13,948.96

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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.