Home / 15,583.02-21,504.98-8,509.88

Finding the Fourth Proportional to 15,583.02, 21,504.98 and 8,509.88

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Solution

The fourth proportional to 15,583.02, 21,504.98 and 8,509.88 is: 11,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.02 : 21,504.98 = 8,509.88 : x
  2. Step 2: Convert to fraction form
    15,583.02/21,504.98 = 8,509.88/x
  3. Step 3: Cross multiply
    15,583.02x = 21,504.98 × 8,509.88
  4. Step 4: Simplify right side
    15,583.02x = 183,004,799.20
  5. Step 5: Solve for x
    x = 183,004,799.20/15,583.02
  6. Step 6: Final answer
    x = 11,743.86

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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.