Home / 12,359.10-18,538.49-2,999.19

Finding the Fourth Proportional to 12,359.10, 18,538.49 and 2,999.19

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Solution

The fourth proportional to 12,359.10, 18,538.49 and 2,999.19 is: 4,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.10 : 18,538.49 = 2,999.19 : x
  2. Step 2: Convert to fraction form
    12,359.10/18,538.49 = 2,999.19/x
  3. Step 3: Cross multiply
    12,359.10x = 18,538.49 × 2,999.19
  4. Step 4: Simplify right side
    12,359.10x = 55,600,453.82
  5. Step 5: Solve for x
    x = 55,600,453.82/12,359.10
  6. Step 6: Final answer
    x = 4,498.75

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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.