Home / 15,126.89-20,872.02-8,838.05

Finding the Fourth Proportional to 15,126.89, 20,872.02 and 8,838.05

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Solution

The fourth proportional to 15,126.89, 20,872.02 and 8,838.05 is: 12,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.89 : 20,872.02 = 8,838.05 : x
  2. Step 2: Convert to fraction form
    15,126.89/20,872.02 = 8,838.05/x
  3. Step 3: Cross multiply
    15,126.89x = 20,872.02 × 8,838.05
  4. Step 4: Simplify right side
    15,126.89x = 184,467,852.00
  5. Step 5: Solve for x
    x = 184,467,852.00/15,126.89
  6. Step 6: Final answer
    x = 12,194.70

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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.