Home / 15,596.39-21,516.91-9,617.69

Finding the Fourth Proportional to 15,596.39, 21,516.91 and 9,617.69

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Solution

The fourth proportional to 15,596.39, 21,516.91 and 9,617.69 is: 13,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,596.39 : 21,516.91 = 9,617.69 : x
  2. Step 2: Convert to fraction form
    15,596.39/21,516.91 = 9,617.69/x
  3. Step 3: Cross multiply
    15,596.39x = 21,516.91 × 9,617.69
  4. Step 4: Simplify right side
    15,596.39x = 206,942,999.89
  5. Step 5: Solve for x
    x = 206,942,999.89/15,596.39
  6. Step 6: Final answer
    x = 13,268.65

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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.