Home / 12,404.96-17,119.36-6,816

Finding the Fourth Proportional to 12,404.96, 17,119.36 and 6,816

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Solution

The fourth proportional to 12,404.96, 17,119.36 and 6,816 is: 9,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.96 : 17,119.36 = 6,816 : x
  2. Step 2: Convert to fraction form
    12,404.96/17,119.36 = 6,816/x
  3. Step 3: Cross multiply
    12,404.96x = 17,119.36 × 6,816
  4. Step 4: Simplify right side
    12,404.96x = 116,685,557.76
  5. Step 5: Solve for x
    x = 116,685,557.76/12,404.96
  6. Step 6: Final answer
    x = 9,406.36

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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.