Home / 15,979.96-23,969.94-12,539.08

Finding the Fourth Proportional to 15,979.96, 23,969.94 and 12,539.08

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Solution

The fourth proportional to 15,979.96, 23,969.94 and 12,539.08 is: 18,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.96 : 23,969.94 = 12,539.08 : x
  2. Step 2: Convert to fraction form
    15,979.96/23,969.94 = 12,539.08/x
  3. Step 3: Cross multiply
    15,979.96x = 23,969.94 × 12,539.08
  4. Step 4: Simplify right side
    15,979.96x = 300,560,995.26
  5. Step 5: Solve for x
    x = 300,560,995.26/15,979.96
  6. Step 6: Final answer
    x = 18,808.62

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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.