Home / 12,020.36-16,578.96-10,344.60

Finding the Fourth Proportional to 12,020.36, 16,578.96 and 10,344.60

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Solution

The fourth proportional to 12,020.36, 16,578.96 and 10,344.60 is: 14,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.36 : 16,578.96 = 10,344.60 : x
  2. Step 2: Convert to fraction form
    12,020.36/16,578.96 = 10,344.60/x
  3. Step 3: Cross multiply
    12,020.36x = 16,578.96 × 10,344.60
  4. Step 4: Simplify right side
    12,020.36x = 171,502,709.62
  5. Step 5: Solve for x
    x = 171,502,709.62/12,020.36
  6. Step 6: Final answer
    x = 14,267.68

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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.