Home / 11,274.69-16,890.17-8,307.75

Finding the Fourth Proportional to 11,274.69, 16,890.17 and 8,307.75

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Solution

The fourth proportional to 11,274.69, 16,890.17 and 8,307.75 is: 12,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.69 : 16,890.17 = 8,307.75 : x
  2. Step 2: Convert to fraction form
    11,274.69/16,890.17 = 8,307.75/x
  3. Step 3: Cross multiply
    11,274.69x = 16,890.17 × 8,307.75
  4. Step 4: Simplify right side
    11,274.69x = 140,319,268.28
  5. Step 5: Solve for x
    x = 140,319,268.28/11,274.69
  6. Step 6: Final answer
    x = 12,445.51

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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.