Home / 10,514.61-15,771.57-4,272.80

Finding the Fourth Proportional to 10,514.61, 15,771.57 and 4,272.80

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Solution

The fourth proportional to 10,514.61, 15,771.57 and 4,272.80 is: 6,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.61 : 15,771.57 = 4,272.80 : x
  2. Step 2: Convert to fraction form
    10,514.61/15,771.57 = 4,272.80/x
  3. Step 3: Cross multiply
    10,514.61x = 15,771.57 × 4,272.80
  4. Step 4: Simplify right side
    10,514.61x = 67,388,685.44
  5. Step 5: Solve for x
    x = 67,388,685.44/10,514.61
  6. Step 6: Final answer
    x = 6,409.05

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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.