Home / 14,645.07-20,209.91-7,930.71

Finding the Fourth Proportional to 14,645.07, 20,209.91 and 7,930.71

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Solution

The fourth proportional to 14,645.07, 20,209.91 and 7,930.71 is: 10,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.07 : 20,209.91 = 7,930.71 : x
  2. Step 2: Convert to fraction form
    14,645.07/20,209.91 = 7,930.71/x
  3. Step 3: Cross multiply
    14,645.07x = 20,209.91 × 7,930.71
  4. Step 4: Simplify right side
    14,645.07x = 160,278,895.68
  5. Step 5: Solve for x
    x = 160,278,895.68/14,645.07
  6. Step 6: Final answer
    x = 10,944.22

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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.