Home / 9,520.86-13,126.20-7,813.14

Finding the Fourth Proportional to 9,520.86, 13,126.20 and 7,813.14

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Solution

The fourth proportional to 9,520.86, 13,126.20 and 7,813.14 is: 10,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.86 : 13,126.20 = 7,813.14 : x
  2. Step 2: Convert to fraction form
    9,520.86/13,126.20 = 7,813.14/x
  3. Step 3: Cross multiply
    9,520.86x = 13,126.20 × 7,813.14
  4. Step 4: Simplify right side
    9,520.86x = 102,556,838.27
  5. Step 5: Solve for x
    x = 102,556,838.27/9,520.86
  6. Step 6: Final answer
    x = 10,771.80

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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.