Home / 13,225.22-18,250.95-7,257.12

Finding the Fourth Proportional to 13,225.22, 18,250.95 and 7,257.12

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Solution

The fourth proportional to 13,225.22, 18,250.95 and 7,257.12 is: 10,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.22 : 18,250.95 = 7,257.12 : x
  2. Step 2: Convert to fraction form
    13,225.22/18,250.95 = 7,257.12/x
  3. Step 3: Cross multiply
    13,225.22x = 18,250.95 × 7,257.12
  4. Step 4: Simplify right side
    13,225.22x = 132,449,283.14
  5. Step 5: Solve for x
    x = 132,449,283.14/13,225.22
  6. Step 6: Final answer
    x = 10,014.90

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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.