Home / 10,992.36-15,169.68-6,278.16

Finding the Fourth Proportional to 10,992.36, 15,169.68 and 6,278.16

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Solution

The fourth proportional to 10,992.36, 15,169.68 and 6,278.16 is: 8,663.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.36 : 15,169.68 = 6,278.16 : x
  2. Step 2: Convert to fraction form
    10,992.36/15,169.68 = 6,278.16/x
  3. Step 3: Cross multiply
    10,992.36x = 15,169.68 × 6,278.16
  4. Step 4: Simplify right side
    10,992.36x = 95,237,678.19
  5. Step 5: Solve for x
    x = 95,237,678.19/10,992.36
  6. Step 6: Final answer
    x = 8,663.99

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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.