Home / 15,655.50-21,604.59-8,582.19

Finding the Fourth Proportional to 15,655.50, 21,604.59 and 8,582.19

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Solution

The fourth proportional to 15,655.50, 21,604.59 and 8,582.19 is: 11,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.50 : 21,604.59 = 8,582.19 : x
  2. Step 2: Convert to fraction form
    15,655.50/21,604.59 = 8,582.19/x
  3. Step 3: Cross multiply
    15,655.50x = 21,604.59 × 8,582.19
  4. Step 4: Simplify right side
    15,655.50x = 185,414,696.25
  5. Step 5: Solve for x
    x = 185,414,696.25/15,655.50
  6. Step 6: Final answer
    x = 11,843.42

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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.