Home / 15,656.12-21,605.24-8,582.54

Finding the Fourth Proportional to 15,656.12, 21,605.24 and 8,582.54

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Solution

The fourth proportional to 15,656.12, 21,605.24 and 8,582.54 is: 11,843.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.12 : 21,605.24 = 8,582.54 : x
  2. Step 2: Convert to fraction form
    15,656.12/21,605.24 = 8,582.54/x
  3. Step 3: Cross multiply
    15,656.12x = 21,605.24 × 8,582.54
  4. Step 4: Simplify right side
    15,656.12x = 185,427,836.51
  5. Step 5: Solve for x
    x = 185,427,836.51/15,656.12
  6. Step 6: Final answer
    x = 11,843.79

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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.