Home / 14,186.48-19,578.66-7,899.80

Finding the Fourth Proportional to 14,186.48, 19,578.66 and 7,899.80

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Solution

The fourth proportional to 14,186.48, 19,578.66 and 7,899.80 is: 10,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.48 : 19,578.66 = 7,899.80 : x
  2. Step 2: Convert to fraction form
    14,186.48/19,578.66 = 7,899.80/x
  3. Step 3: Cross multiply
    14,186.48x = 19,578.66 × 7,899.80
  4. Step 4: Simplify right side
    14,186.48x = 154,667,498.27
  5. Step 5: Solve for x
    x = 154,667,498.27/14,186.48
  6. Step 6: Final answer
    x = 10,902.46

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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.