Home / 13,200.90-18,216.72-7,232.61

Finding the Fourth Proportional to 13,200.90, 18,216.72 and 7,232.61

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Solution

The fourth proportional to 13,200.90, 18,216.72 and 7,232.61 is: 9,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.90 : 18,216.72 = 7,232.61 : x
  2. Step 2: Convert to fraction form
    13,200.90/18,216.72 = 7,232.61/x
  3. Step 3: Cross multiply
    13,200.90x = 18,216.72 × 7,232.61
  4. Step 4: Simplify right side
    13,200.90x = 131,754,431.24
  5. Step 5: Solve for x
    x = 131,754,431.24/13,200.90
  6. Step 6: Final answer
    x = 9,980.72

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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.