Home / 14,478.41-19,992.68-9,109.80

Finding the Fourth Proportional to 14,478.41, 19,992.68 and 9,109.80

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Solution

The fourth proportional to 14,478.41, 19,992.68 and 9,109.80 is: 12,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.41 : 19,992.68 = 9,109.80 : x
  2. Step 2: Convert to fraction form
    14,478.41/19,992.68 = 9,109.80/x
  3. Step 3: Cross multiply
    14,478.41x = 19,992.68 × 9,109.80
  4. Step 4: Simplify right side
    14,478.41x = 182,129,270.72
  5. Step 5: Solve for x
    x = 182,129,270.72/14,478.41
  6. Step 6: Final answer
    x = 12,579.37

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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.