Home / 12,339.88-18,511.44-6,496.81

Finding the Fourth Proportional to 12,339.88, 18,511.44 and 6,496.81

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Solution

The fourth proportional to 12,339.88, 18,511.44 and 6,496.81 is: 9,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.88 : 18,511.44 = 6,496.81 : x
  2. Step 2: Convert to fraction form
    12,339.88/18,511.44 = 6,496.81/x
  3. Step 3: Cross multiply
    12,339.88x = 18,511.44 × 6,496.81
  4. Step 4: Simplify right side
    12,339.88x = 120,265,292.26
  5. Step 5: Solve for x
    x = 120,265,292.26/12,339.88
  6. Step 6: Final answer
    x = 9,746.07

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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.