Home / 18,358.92-25,332.21-10,399.50

Finding the Fourth Proportional to 18,358.92, 25,332.21 and 10,399.50

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Solution

The fourth proportional to 18,358.92, 25,332.21 and 10,399.50 is: 14,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.92 : 25,332.21 = 10,399.50 : x
  2. Step 2: Convert to fraction form
    18,358.92/25,332.21 = 10,399.50/x
  3. Step 3: Cross multiply
    18,358.92x = 25,332.21 × 10,399.50
  4. Step 4: Simplify right side
    18,358.92x = 263,442,317.90
  5. Step 5: Solve for x
    x = 263,442,317.90/18,358.92
  6. Step 6: Final answer
    x = 14,349.55

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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.