Home / 15,365.10-21,201.17-8,650.20

Finding the Fourth Proportional to 15,365.10, 21,201.17 and 8,650.20

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Solution

The fourth proportional to 15,365.10, 21,201.17 and 8,650.20 is: 11,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.10 : 21,201.17 = 8,650.20 : x
  2. Step 2: Convert to fraction form
    15,365.10/21,201.17 = 8,650.20/x
  3. Step 3: Cross multiply
    15,365.10x = 21,201.17 × 8,650.20
  4. Step 4: Simplify right side
    15,365.10x = 183,394,317.48
  5. Step 5: Solve for x
    x = 183,394,317.48/15,365.10
  6. Step 6: Final answer
    x = 11,935.77

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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.