Home / 15,578.24-21,498-8,504.60

Finding the Fourth Proportional to 15,578.24, 21,498 and 8,504.60

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Solution

The fourth proportional to 15,578.24, 21,498 and 8,504.60 is: 11,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.24 : 21,498 = 8,504.60 : x
  2. Step 2: Convert to fraction form
    15,578.24/21,498 = 8,504.60/x
  3. Step 3: Cross multiply
    15,578.24x = 21,498 × 8,504.60
  4. Step 4: Simplify right side
    15,578.24x = 182,831,890.80
  5. Step 5: Solve for x
    x = 182,831,890.80/15,578.24
  6. Step 6: Final answer
    x = 11,736.36

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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.