Home / 10,985.49-15,161.06-6,270.48

Finding the Fourth Proportional to 10,985.49, 15,161.06 and 6,270.48

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Solution

The fourth proportional to 10,985.49, 15,161.06 and 6,270.48 is: 8,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.49 : 15,161.06 = 6,270.48 : x
  2. Step 2: Convert to fraction form
    10,985.49/15,161.06 = 6,270.48/x
  3. Step 3: Cross multiply
    10,985.49x = 15,161.06 × 6,270.48
  4. Step 4: Simplify right side
    10,985.49x = 95,067,092.16
  5. Step 5: Solve for x
    x = 95,067,092.16/10,985.49
  6. Step 6: Final answer
    x = 8,653.88

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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.