Home / 13,276.11-18,321.53-7,308.03

Finding the Fourth Proportional to 13,276.11, 18,321.53 and 7,308.03

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Solution

The fourth proportional to 13,276.11, 18,321.53 and 7,308.03 is: 10,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.11 : 18,321.53 = 7,308.03 : x
  2. Step 2: Convert to fraction form
    13,276.11/18,321.53 = 7,308.03/x
  3. Step 3: Cross multiply
    13,276.11x = 18,321.53 × 7,308.03
  4. Step 4: Simplify right side
    13,276.11x = 133,894,323.05
  5. Step 5: Solve for x
    x = 133,894,323.05/13,276.11
  6. Step 6: Final answer
    x = 10,085.36

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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.