Home / 11,128.93-15,359.61-6,348.85

Finding the Fourth Proportional to 11,128.93, 15,359.61 and 6,348.85

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Solution

The fourth proportional to 11,128.93, 15,359.61 and 6,348.85 is: 8,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.93 : 15,359.61 = 6,348.85 : x
  2. Step 2: Convert to fraction form
    11,128.93/15,359.61 = 6,348.85/x
  3. Step 3: Cross multiply
    11,128.93x = 15,359.61 × 6,348.85
  4. Step 4: Simplify right side
    11,128.93x = 97,515,859.95
  5. Step 5: Solve for x
    x = 97,515,859.95/11,128.93
  6. Step 6: Final answer
    x = 8,762.38

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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.