Home / 15,908.07-23,872.77-7,143.60

Finding the Fourth Proportional to 15,908.07, 23,872.77 and 7,143.60

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Solution

The fourth proportional to 15,908.07, 23,872.77 and 7,143.60 is: 10,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.07 : 23,872.77 = 7,143.60 : x
  2. Step 2: Convert to fraction form
    15,908.07/23,872.77 = 7,143.60/x
  3. Step 3: Cross multiply
    15,908.07x = 23,872.77 × 7,143.60
  4. Step 4: Simplify right side
    15,908.07x = 170,537,519.77
  5. Step 5: Solve for x
    x = 170,537,519.77/15,908.07
  6. Step 6: Final answer
    x = 10,720.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.