Home / 15,365.20-21,203.16-8,650.96

Finding the Fourth Proportional to 15,365.20, 21,203.16 and 8,650.96

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Solution

The fourth proportional to 15,365.20, 21,203.16 and 8,650.96 is: 11,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.20 : 21,203.16 = 8,650.96 : x
  2. Step 2: Convert to fraction form
    15,365.20/21,203.16 = 8,650.96/x
  3. Step 3: Cross multiply
    15,365.20x = 21,203.16 × 8,650.96
  4. Step 4: Simplify right side
    15,365.20x = 183,427,689.03
  5. Step 5: Solve for x
    x = 183,427,689.03/15,365.20
  6. Step 6: Final answer
    x = 11,937.87

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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.