Home / 13,212.26-18,232.34-7,910.00

Finding the Fourth Proportional to 13,212.26, 18,232.34 and 7,910.00

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Solution

The fourth proportional to 13,212.26, 18,232.34 and 7,910.00 is: 10,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.26 : 18,232.34 = 7,910.00 : x
  2. Step 2: Convert to fraction form
    13,212.26/18,232.34 = 7,910.00/x
  3. Step 3: Cross multiply
    13,212.26x = 18,232.34 × 7,910.00
  4. Step 4: Simplify right side
    13,212.26x = 144,217,815.43
  5. Step 5: Solve for x
    x = 144,217,815.43/13,212.26
  6. Step 6: Final answer
    x = 10,915.45

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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.