Home / 13,182.02-18,190.95-7,213.58

Finding the Fourth Proportional to 13,182.02, 18,190.95 and 7,213.58

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Solution

The fourth proportional to 13,182.02, 18,190.95 and 7,213.58 is: 9,954.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.02 : 18,190.95 = 7,213.58 : x
  2. Step 2: Convert to fraction form
    13,182.02/18,190.95 = 7,213.58/x
  3. Step 3: Cross multiply
    13,182.02x = 18,190.95 × 7,213.58
  4. Step 4: Simplify right side
    13,182.02x = 131,221,873.10
  5. Step 5: Solve for x
    x = 131,221,873.10/13,182.02
  6. Step 6: Final answer
    x = 9,954.61

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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.