Home / 13,074.88-18,044.40-7,486.24

Finding the Fourth Proportional to 13,074.88, 18,044.40 and 7,486.24

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Solution

The fourth proportional to 13,074.88, 18,044.40 and 7,486.24 is: 10,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.88 : 18,044.40 = 7,486.24 : x
  2. Step 2: Convert to fraction form
    13,074.88/18,044.40 = 7,486.24/x
  3. Step 3: Cross multiply
    13,074.88x = 18,044.40 × 7,486.24
  4. Step 4: Simplify right side
    13,074.88x = 135,084,709.06
  5. Step 5: Solve for x
    x = 135,084,709.06/13,074.88
  6. Step 6: Final answer
    x = 10,331.62

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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.