Home / 13,200.44-18,216.80-7,232.68

Finding the Fourth Proportional to 13,200.44, 18,216.80 and 7,232.68

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Solution

The fourth proportional to 13,200.44, 18,216.80 and 7,232.68 is: 9,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.44 : 18,216.80 = 7,232.68 : x
  2. Step 2: Convert to fraction form
    13,200.44/18,216.80 = 7,232.68/x
  3. Step 3: Cross multiply
    13,200.44x = 18,216.80 × 7,232.68
  4. Step 4: Simplify right side
    13,200.44x = 131,756,285.02
  5. Step 5: Solve for x
    x = 131,756,285.02/13,200.44
  6. Step 6: Final answer
    x = 9,981.20

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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.