Home / 10,148.26-15,223.83-3,128.85

Finding the Fourth Proportional to 10,148.26, 15,223.83 and 3,128.85

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Solution

The fourth proportional to 10,148.26, 15,223.83 and 3,128.85 is: 4,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.26 : 15,223.83 = 3,128.85 : x
  2. Step 2: Convert to fraction form
    10,148.26/15,223.83 = 3,128.85/x
  3. Step 3: Cross multiply
    10,148.26x = 15,223.83 × 3,128.85
  4. Step 4: Simplify right side
    10,148.26x = 47,633,080.50
  5. Step 5: Solve for x
    x = 47,633,080.50/10,148.26
  6. Step 6: Final answer
    x = 4,693.72

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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.