Home / 8,585.78-11,844.20-5,403.02

Finding the Fourth Proportional to 8,585.78, 11,844.20 and 5,403.02

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Solution

The fourth proportional to 8,585.78, 11,844.20 and 5,403.02 is: 7,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.78 : 11,844.20 = 5,403.02 : x
  2. Step 2: Convert to fraction form
    8,585.78/11,844.20 = 5,403.02/x
  3. Step 3: Cross multiply
    8,585.78x = 11,844.20 × 5,403.02
  4. Step 4: Simplify right side
    8,585.78x = 63,994,449.48
  5. Step 5: Solve for x
    x = 63,994,449.48/8,585.78
  6. Step 6: Final answer
    x = 7,453.54

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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.