Home / 11,175.14-15,421.89-6,139.84

Finding the Fourth Proportional to 11,175.14, 15,421.89 and 6,139.84

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Solution

The fourth proportional to 11,175.14, 15,421.89 and 6,139.84 is: 8,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.14 : 15,421.89 = 6,139.84 : x
  2. Step 2: Convert to fraction form
    11,175.14/15,421.89 = 6,139.84/x
  3. Step 3: Cross multiply
    11,175.14x = 15,421.89 × 6,139.84
  4. Step 4: Simplify right side
    11,175.14x = 94,687,937.10
  5. Step 5: Solve for x
    x = 94,687,937.10/11,175.14
  6. Step 6: Final answer
    x = 8,473.09

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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.