Home / 13,237.20-18,267.36-7,267.92

Finding the Fourth Proportional to 13,237.20, 18,267.36 and 7,267.92

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Solution

The fourth proportional to 13,237.20, 18,267.36 and 7,267.92 is: 10,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.20 : 18,267.36 = 7,267.92 : x
  2. Step 2: Convert to fraction form
    13,237.20/18,267.36 = 7,267.92/x
  3. Step 3: Cross multiply
    13,237.20x = 18,267.36 × 7,267.92
  4. Step 4: Simplify right side
    13,237.20x = 132,765,711.09
  5. Step 5: Solve for x
    x = 132,765,711.09/13,237.20
  6. Step 6: Final answer
    x = 10,029.74

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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.