Home / 15,583.20-21,499.24-9,208.44

Finding the Fourth Proportional to 15,583.20, 21,499.24 and 9,208.44

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Solution

The fourth proportional to 15,583.20, 21,499.24 and 9,208.44 is: 12,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.20 : 21,499.24 = 9,208.44 : x
  2. Step 2: Convert to fraction form
    15,583.20/21,499.24 = 9,208.44/x
  3. Step 3: Cross multiply
    15,583.20x = 21,499.24 × 9,208.44
  4. Step 4: Simplify right side
    15,583.20x = 197,974,461.59
  5. Step 5: Solve for x
    x = 197,974,461.59/15,583.20
  6. Step 6: Final answer
    x = 12,704.35

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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.