Home / 13,223.45-18,248.25-7,255.01

Finding the Fourth Proportional to 13,223.45, 18,248.25 and 7,255.01

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Solution

The fourth proportional to 13,223.45, 18,248.25 and 7,255.01 is: 10,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.45 : 18,248.25 = 7,255.01 : x
  2. Step 2: Convert to fraction form
    13,223.45/18,248.25 = 7,255.01/x
  3. Step 3: Cross multiply
    13,223.45x = 18,248.25 × 7,255.01
  4. Step 4: Simplify right side
    13,223.45x = 132,391,236.23
  5. Step 5: Solve for x
    x = 132,391,236.23/13,223.45
  6. Step 6: Final answer
    x = 10,011.85

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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.