Home / 15,336.13-21,164.61-8,623.87

Finding the Fourth Proportional to 15,336.13, 21,164.61 and 8,623.87

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Solution

The fourth proportional to 15,336.13, 21,164.61 and 8,623.87 is: 11,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.13 : 21,164.61 = 8,623.87 : x
  2. Step 2: Convert to fraction form
    15,336.13/21,164.61 = 8,623.87/x
  3. Step 3: Cross multiply
    15,336.13x = 21,164.61 × 8,623.87
  4. Step 4: Simplify right side
    15,336.13x = 182,520,845.24
  5. Step 5: Solve for x
    x = 182,520,845.24/15,336.13
  6. Step 6: Final answer
    x = 11,901.36

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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.