Home / 11,156.14-15,394.35-6,441.94

Finding the Fourth Proportional to 11,156.14, 15,394.35 and 6,441.94

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Solution

The fourth proportional to 11,156.14, 15,394.35 and 6,441.94 is: 8,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.14 : 15,394.35 = 6,441.94 : x
  2. Step 2: Convert to fraction form
    11,156.14/15,394.35 = 6,441.94/x
  3. Step 3: Cross multiply
    11,156.14x = 15,394.35 × 6,441.94
  4. Step 4: Simplify right side
    11,156.14x = 99,169,479.04
  5. Step 5: Solve for x
    x = 99,169,479.04/11,156.14
  6. Step 6: Final answer
    x = 8,889.23

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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.