Home / 15,369.06-21,183.80-10,887.06

Finding the Fourth Proportional to 15,369.06, 21,183.80 and 10,887.06

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Solution

The fourth proportional to 15,369.06, 21,183.80 and 10,887.06 is: 15,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.06 : 21,183.80 = 10,887.06 : x
  2. Step 2: Convert to fraction form
    15,369.06/21,183.80 = 10,887.06/x
  3. Step 3: Cross multiply
    15,369.06x = 21,183.80 × 10,887.06
  4. Step 4: Simplify right side
    15,369.06x = 230,629,222.93
  5. Step 5: Solve for x
    x = 230,629,222.93/15,369.06
  6. Step 6: Final answer
    x = 15,006.08

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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.