Home / 12,239.19-18,359.19-7,506.36

Finding the Fourth Proportional to 12,239.19, 18,359.19 and 7,506.36

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Solution

The fourth proportional to 12,239.19, 18,359.19 and 7,506.36 is: 11,259.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.19 : 18,359.19 = 7,506.36 : x
  2. Step 2: Convert to fraction form
    12,239.19/18,359.19 = 7,506.36/x
  3. Step 3: Cross multiply
    12,239.19x = 18,359.19 × 7,506.36
  4. Step 4: Simplify right side
    12,239.19x = 137,810,689.45
  5. Step 5: Solve for x
    x = 137,810,689.45/12,239.19
  6. Step 6: Final answer
    x = 11,259.79

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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.