Home / 13,332.33-18,400.39-12,894.22

Finding the Fourth Proportional to 13,332.33, 18,400.39 and 12,894.22

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Solution

The fourth proportional to 13,332.33, 18,400.39 and 12,894.22 is: 17,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.33 : 18,400.39 = 12,894.22 : x
  2. Step 2: Convert to fraction form
    13,332.33/18,400.39 = 12,894.22/x
  3. Step 3: Cross multiply
    13,332.33x = 18,400.39 × 12,894.22
  4. Step 4: Simplify right side
    13,332.33x = 237,258,565.94
  5. Step 5: Solve for x
    x = 237,258,565.94/13,332.33
  6. Step 6: Final answer
    x = 17,795.73

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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.