Home / 12,339.33-18,412.08-11,586.18

Finding the Fourth Proportional to 12,339.33, 18,412.08 and 11,586.18

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Solution

The fourth proportional to 12,339.33, 18,412.08 and 11,586.18 is: 17,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.33 : 18,412.08 = 11,586.18 : x
  2. Step 2: Convert to fraction form
    12,339.33/18,412.08 = 11,586.18/x
  3. Step 3: Cross multiply
    12,339.33x = 18,412.08 × 11,586.18
  4. Step 4: Simplify right side
    12,339.33x = 213,325,673.05
  5. Step 5: Solve for x
    x = 213,325,673.05/12,339.33
  6. Step 6: Final answer
    x = 17,288.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.