Home / 14,631.78-20,191.77-8,344.02

Finding the Fourth Proportional to 14,631.78, 20,191.77 and 8,344.02

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Solution

The fourth proportional to 14,631.78, 20,191.77 and 8,344.02 is: 11,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.78 : 20,191.77 = 8,344.02 : x
  2. Step 2: Convert to fraction form
    14,631.78/20,191.77 = 8,344.02/x
  3. Step 3: Cross multiply
    14,631.78x = 20,191.77 × 8,344.02
  4. Step 4: Simplify right side
    14,631.78x = 168,480,532.72
  5. Step 5: Solve for x
    x = 168,480,532.72/14,631.78
  6. Step 6: Final answer
    x = 11,514.70

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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.