Home / 16,317.45-22,516.09-9,145.71

Finding the Fourth Proportional to 16,317.45, 22,516.09 and 9,145.71

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Solution

The fourth proportional to 16,317.45, 22,516.09 and 9,145.71 is: 12,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,317.45 : 22,516.09 = 9,145.71 : x
  2. Step 2: Convert to fraction form
    16,317.45/22,516.09 = 9,145.71/x
  3. Step 3: Cross multiply
    16,317.45x = 22,516.09 × 9,145.71
  4. Step 4: Simplify right side
    16,317.45x = 205,925,629.47
  5. Step 5: Solve for x
    x = 205,925,629.47/16,317.45
  6. Step 6: Final answer
    x = 12,619.96

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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.