Home / 14,645.11-20,210.28-7,930.75

Finding the Fourth Proportional to 14,645.11, 20,210.28 and 7,930.75

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Solution

The fourth proportional to 14,645.11, 20,210.28 and 7,930.75 is: 10,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.11 : 20,210.28 = 7,930.75 : x
  2. Step 2: Convert to fraction form
    14,645.11/20,210.28 = 7,930.75/x
  3. Step 3: Cross multiply
    14,645.11x = 20,210.28 × 7,930.75
  4. Step 4: Simplify right side
    14,645.11x = 160,282,692.58
  5. Step 5: Solve for x
    x = 160,282,692.58/14,645.11
  6. Step 6: Final answer
    x = 10,944.45

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Half scale
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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.