Home / 18,358.43-25,332.89-10,400.63

Finding the Fourth Proportional to 18,358.43, 25,332.89 and 10,400.63

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Solution

The fourth proportional to 18,358.43, 25,332.89 and 10,400.63 is: 14,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.43 : 25,332.89 = 10,400.63 : x
  2. Step 2: Convert to fraction form
    18,358.43/25,332.89 = 10,400.63/x
  3. Step 3: Cross multiply
    18,358.43x = 25,332.89 × 10,400.63
  4. Step 4: Simplify right side
    18,358.43x = 263,477,837.05
  5. Step 5: Solve for x
    x = 263,477,837.05/18,358.43
  6. Step 6: Final answer
    x = 14,351.88

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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.