Home / 15,383.02-21,228.57-8,309.44

Finding the Fourth Proportional to 15,383.02, 21,228.57 and 8,309.44

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Solution

The fourth proportional to 15,383.02, 21,228.57 and 8,309.44 is: 11,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.02 : 21,228.57 = 8,309.44 : x
  2. Step 2: Convert to fraction form
    15,383.02/21,228.57 = 8,309.44/x
  3. Step 3: Cross multiply
    15,383.02x = 21,228.57 × 8,309.44
  4. Step 4: Simplify right side
    15,383.02x = 176,397,475.63
  5. Step 5: Solve for x
    x = 176,397,475.63/15,383.02
  6. Step 6: Final answer
    x = 11,467.03

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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.