Home / 11,743.29-16,206.78-6,439.14

Finding the Fourth Proportional to 11,743.29, 16,206.78 and 6,439.14

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Solution

The fourth proportional to 11,743.29, 16,206.78 and 6,439.14 is: 8,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.29 : 16,206.78 = 6,439.14 : x
  2. Step 2: Convert to fraction form
    11,743.29/16,206.78 = 6,439.14/x
  3. Step 3: Cross multiply
    11,743.29x = 16,206.78 × 6,439.14
  4. Step 4: Simplify right side
    11,743.29x = 104,357,725.37
  5. Step 5: Solve for x
    x = 104,357,725.37/11,743.29
  6. Step 6: Final answer
    x = 8,886.58

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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.