Home / 10,128.76-15,191.71-2,733.66

Finding the Fourth Proportional to 10,128.76, 15,191.71 and 2,733.66

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Solution

The fourth proportional to 10,128.76, 15,191.71 and 2,733.66 is: 4,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.76 : 15,191.71 = 2,733.66 : x
  2. Step 2: Convert to fraction form
    10,128.76/15,191.71 = 2,733.66/x
  3. Step 3: Cross multiply
    10,128.76x = 15,191.71 × 2,733.66
  4. Step 4: Simplify right side
    10,128.76x = 41,528,963.12
  5. Step 5: Solve for x
    x = 41,528,963.12/10,128.76
  6. Step 6: Final answer
    x = 4,100.10

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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.