Home / 18,321.64-25,287.12-10,366.36

Finding the Fourth Proportional to 18,321.64, 25,287.12 and 10,366.36

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Solution

The fourth proportional to 18,321.64, 25,287.12 and 10,366.36 is: 14,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.64 : 25,287.12 = 10,366.36 : x
  2. Step 2: Convert to fraction form
    18,321.64/25,287.12 = 10,366.36/x
  3. Step 3: Cross multiply
    18,321.64x = 25,287.12 × 10,366.36
  4. Step 4: Simplify right side
    18,321.64x = 262,135,389.28
  5. Step 5: Solve for x
    x = 262,135,389.28/18,321.64
  6. Step 6: Final answer
    x = 14,307.42

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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.