Home / 10,051.17-15,083.78-4,128.51

Finding the Fourth Proportional to 10,051.17, 15,083.78 and 4,128.51

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Solution

The fourth proportional to 10,051.17, 15,083.78 and 4,128.51 is: 6,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.17 : 15,083.78 = 4,128.51 : x
  2. Step 2: Convert to fraction form
    10,051.17/15,083.78 = 4,128.51/x
  3. Step 3: Cross multiply
    10,051.17x = 15,083.78 × 4,128.51
  4. Step 4: Simplify right side
    10,051.17x = 62,273,515.93
  5. Step 5: Solve for x
    x = 62,273,515.93/10,051.17
  6. Step 6: Final answer
    x = 6,195.65

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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.