Home / 11,120.99-15,352.52-6,404.36

Finding the Fourth Proportional to 11,120.99, 15,352.52 and 6,404.36

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Solution

The fourth proportional to 11,120.99, 15,352.52 and 6,404.36 is: 8,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.99 : 15,352.52 = 6,404.36 : x
  2. Step 2: Convert to fraction form
    11,120.99/15,352.52 = 6,404.36/x
  3. Step 3: Cross multiply
    11,120.99x = 15,352.52 × 6,404.36
  4. Step 4: Simplify right side
    11,120.99x = 98,323,064.99
  5. Step 5: Solve for x
    x = 98,323,064.99/11,120.99
  6. Step 6: Final answer
    x = 8,841.22

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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.