Home / 18,491.57-25,518.37-10,108.07

Finding the Fourth Proportional to 18,491.57, 25,518.37 and 10,108.07

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Solution

The fourth proportional to 18,491.57, 25,518.37 and 10,108.07 is: 13,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.57 : 25,518.37 = 10,108.07 : x
  2. Step 2: Convert to fraction form
    18,491.57/25,518.37 = 10,108.07/x
  3. Step 3: Cross multiply
    18,491.57x = 25,518.37 × 10,108.07
  4. Step 4: Simplify right side
    18,491.57x = 257,941,470.25
  5. Step 5: Solve for x
    x = 257,941,470.25/18,491.57
  6. Step 6: Final answer
    x = 13,949.14

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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.