Home / 11,699.76-16,145.36-6,394.40

Finding the Fourth Proportional to 11,699.76, 16,145.36 and 6,394.40

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Solution

The fourth proportional to 11,699.76, 16,145.36 and 6,394.40 is: 8,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.76 : 16,145.36 = 6,394.40 : x
  2. Step 2: Convert to fraction form
    11,699.76/16,145.36 = 6,394.40/x
  3. Step 3: Cross multiply
    11,699.76x = 16,145.36 × 6,394.40
  4. Step 4: Simplify right side
    11,699.76x = 103,239,889.98
  5. Step 5: Solve for x
    x = 103,239,889.98/11,699.76
  6. Step 6: Final answer
    x = 8,824.10

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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.