Home / 9,666.50-13,339.77-5,475.56

Finding the Fourth Proportional to 9,666.50, 13,339.77 and 5,475.56

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Solution

The fourth proportional to 9,666.50, 13,339.77 and 5,475.56 is: 7,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666.50 : 13,339.77 = 5,475.56 : x
  2. Step 2: Convert to fraction form
    9,666.50/13,339.77 = 5,475.56/x
  3. Step 3: Cross multiply
    9,666.50x = 13,339.77 × 5,475.56
  4. Step 4: Simplify right side
    9,666.50x = 73,042,711.02
  5. Step 5: Solve for x
    x = 73,042,711.02/9,666.50
  6. Step 6: Final answer
    x = 7,556.27

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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.