Home / 13,859.43-20,792.18-7,930.23

Finding the Fourth Proportional to 13,859.43, 20,792.18 and 7,930.23

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Solution

The fourth proportional to 13,859.43, 20,792.18 and 7,930.23 is: 11,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.43 : 20,792.18 = 7,930.23 : x
  2. Step 2: Convert to fraction form
    13,859.43/20,792.18 = 7,930.23/x
  3. Step 3: Cross multiply
    13,859.43x = 20,792.18 × 7,930.23
  4. Step 4: Simplify right side
    13,859.43x = 164,886,769.60
  5. Step 5: Solve for x
    x = 164,886,769.60/13,859.43
  6. Step 6: Final answer
    x = 11,897.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.