Home / 13,104.48-18,080.07-7,438.80

Finding the Fourth Proportional to 13,104.48, 18,080.07 and 7,438.80

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Solution

The fourth proportional to 13,104.48, 18,080.07 and 7,438.80 is: 10,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.48 : 18,080.07 = 7,438.80 : x
  2. Step 2: Convert to fraction form
    13,104.48/18,080.07 = 7,438.80/x
  3. Step 3: Cross multiply
    13,104.48x = 18,080.07 × 7,438.80
  4. Step 4: Simplify right side
    13,104.48x = 134,494,024.72
  5. Step 5: Solve for x
    x = 134,494,024.72/13,104.48
  6. Step 6: Final answer
    x = 10,263.21

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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.