Home / 16,805.86-25,212.87-5,119.07

Finding the Fourth Proportional to 16,805.86, 25,212.87 and 5,119.07

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Solution

The fourth proportional to 16,805.86, 25,212.87 and 5,119.07 is: 7,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.86 : 25,212.87 = 5,119.07 : x
  2. Step 2: Convert to fraction form
    16,805.86/25,212.87 = 5,119.07/x
  3. Step 3: Cross multiply
    16,805.86x = 25,212.87 × 5,119.07
  4. Step 4: Simplify right side
    16,805.86x = 129,066,320.37
  5. Step 5: Solve for x
    x = 129,066,320.37/16,805.86
  6. Step 6: Final answer
    x = 7,679.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.