Home / 15,983.64-22,056.30-8,910.45

Finding the Fourth Proportional to 15,983.64, 22,056.30 and 8,910.45

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Solution

The fourth proportional to 15,983.64, 22,056.30 and 8,910.45 is: 12,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.64 : 22,056.30 = 8,910.45 : x
  2. Step 2: Convert to fraction form
    15,983.64/22,056.30 = 8,910.45/x
  3. Step 3: Cross multiply
    15,983.64x = 22,056.30 × 8,910.45
  4. Step 4: Simplify right side
    15,983.64x = 196,531,558.34
  5. Step 5: Solve for x
    x = 196,531,558.34/15,983.64
  6. Step 6: Final answer
    x = 12,295.79

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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.