Home / 9,140.91-13,684.64-8,265.44

Finding the Fourth Proportional to 9,140.91, 13,684.64 and 8,265.44

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Solution

The fourth proportional to 9,140.91, 13,684.64 and 8,265.44 is: 12,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.91 : 13,684.64 = 8,265.44 : x
  2. Step 2: Convert to fraction form
    9,140.91/13,684.64 = 8,265.44/x
  3. Step 3: Cross multiply
    9,140.91x = 13,684.64 × 8,265.44
  4. Step 4: Simplify right side
    9,140.91x = 113,109,461.09
  5. Step 5: Solve for x
    x = 113,109,461.09/9,140.91
  6. Step 6: Final answer
    x = 12,373.98

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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.