Home / 12,359.13-18,538.73-2,999.12

Finding the Fourth Proportional to 12,359.13, 18,538.73 and 2,999.12

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Solution

The fourth proportional to 12,359.13, 18,538.73 and 2,999.12 is: 4,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.13 : 18,538.73 = 2,999.12 : x
  2. Step 2: Convert to fraction form
    12,359.13/18,538.73 = 2,999.12/x
  3. Step 3: Cross multiply
    12,359.13x = 18,538.73 × 2,999.12
  4. Step 4: Simplify right side
    12,359.13x = 55,599,768.23
  5. Step 5: Solve for x
    x = 55,599,768.23/12,359.13
  6. Step 6: Final answer
    x = 4,498.68

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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.