Home / 15,902.07-21,965.53-12,102.16

Finding the Fourth Proportional to 15,902.07, 21,965.53 and 12,102.16

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Solution

The fourth proportional to 15,902.07, 21,965.53 and 12,102.16 is: 16,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,902.07 : 21,965.53 = 12,102.16 : x
  2. Step 2: Convert to fraction form
    15,902.07/21,965.53 = 12,102.16/x
  3. Step 3: Cross multiply
    15,902.07x = 21,965.53 × 12,102.16
  4. Step 4: Simplify right side
    15,902.07x = 265,830,358.54
  5. Step 5: Solve for x
    x = 265,830,358.54/15,902.07
  6. Step 6: Final answer
    x = 16,716.71

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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.