Home / 10,985.98-15,161.43-6,270.97

Finding the Fourth Proportional to 10,985.98, 15,161.43 and 6,270.97

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Solution

The fourth proportional to 10,985.98, 15,161.43 and 6,270.97 is: 8,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.98 : 15,161.43 = 6,270.97 : x
  2. Step 2: Convert to fraction form
    10,985.98/15,161.43 = 6,270.97/x
  3. Step 3: Cross multiply
    10,985.98x = 15,161.43 × 6,270.97
  4. Step 4: Simplify right side
    10,985.98x = 95,076,872.69
  5. Step 5: Solve for x
    x = 95,076,872.69/10,985.98
  6. Step 6: Final answer
    x = 8,654.38

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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.