Home / 15,583.46-21,504.36-8,509.76

Finding the Fourth Proportional to 15,583.46, 21,504.36 and 8,509.76

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Solution

The fourth proportional to 15,583.46, 21,504.36 and 8,509.76 is: 11,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.46 : 21,504.36 = 8,509.76 : x
  2. Step 2: Convert to fraction form
    15,583.46/21,504.36 = 8,509.76/x
  3. Step 3: Cross multiply
    15,583.46x = 21,504.36 × 8,509.76
  4. Step 4: Simplify right side
    15,583.46x = 182,996,942.55
  5. Step 5: Solve for x
    x = 182,996,942.55/15,583.46
  6. Step 6: Final answer
    x = 11,743.02

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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.