Home / 18,291.34-27,436.47-7,190.02

Finding the Fourth Proportional to 18,291.34, 27,436.47 and 7,190.02

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Solution

The fourth proportional to 18,291.34, 27,436.47 and 7,190.02 is: 10,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.34 : 27,436.47 = 7,190.02 : x
  2. Step 2: Convert to fraction form
    18,291.34/27,436.47 = 7,190.02/x
  3. Step 3: Cross multiply
    18,291.34x = 27,436.47 × 7,190.02
  4. Step 4: Simplify right side
    18,291.34x = 197,268,768.03
  5. Step 5: Solve for x
    x = 197,268,768.03/18,291.34
  6. Step 6: Final answer
    x = 10,784.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.