Home / 11,186.98-15,438.21-6,151.42

Finding the Fourth Proportional to 11,186.98, 15,438.21 and 6,151.42

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Solution

The fourth proportional to 11,186.98, 15,438.21 and 6,151.42 is: 8,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.98 : 15,438.21 = 6,151.42 : x
  2. Step 2: Convert to fraction form
    11,186.98/15,438.21 = 6,151.42/x
  3. Step 3: Cross multiply
    11,186.98x = 15,438.21 × 6,151.42
  4. Step 4: Simplify right side
    11,186.98x = 94,966,913.76
  5. Step 5: Solve for x
    x = 94,966,913.76/11,186.98
  6. Step 6: Final answer
    x = 8,489.06

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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.