Home / 14,620.87-20,176.14-9,317.38

Finding the Fourth Proportional to 14,620.87, 20,176.14 and 9,317.38

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Solution

The fourth proportional to 14,620.87, 20,176.14 and 9,317.38 is: 12,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.87 : 20,176.14 = 9,317.38 : x
  2. Step 2: Convert to fraction form
    14,620.87/20,176.14 = 9,317.38/x
  3. Step 3: Cross multiply
    14,620.87x = 20,176.14 × 9,317.38
  4. Step 4: Simplify right side
    14,620.87x = 187,988,763.31
  5. Step 5: Solve for x
    x = 187,988,763.31/14,620.87
  6. Step 6: Final answer
    x = 12,857.56

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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.