Home / 13,262.80-18,300.36-8,228.24

Finding the Fourth Proportional to 13,262.80, 18,300.36 and 8,228.24

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Solution

The fourth proportional to 13,262.80, 18,300.36 and 8,228.24 is: 11,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.80 : 18,300.36 = 8,228.24 : x
  2. Step 2: Convert to fraction form
    13,262.80/18,300.36 = 8,228.24/x
  3. Step 3: Cross multiply
    13,262.80x = 18,300.36 × 8,228.24
  4. Step 4: Simplify right side
    13,262.80x = 150,579,754.17
  5. Step 5: Solve for x
    x = 150,579,754.17/13,262.80
  6. Step 6: Final answer
    x = 11,353.54

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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.