Home / 12,559.50-18,837.20-4,239.33

Finding the Fourth Proportional to 12,559.50, 18,837.20 and 4,239.33

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Solution

The fourth proportional to 12,559.50, 18,837.20 and 4,239.33 is: 6,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.50 : 18,837.20 = 4,239.33 : x
  2. Step 2: Convert to fraction form
    12,559.50/18,837.20 = 4,239.33/x
  3. Step 3: Cross multiply
    12,559.50x = 18,837.20 × 4,239.33
  4. Step 4: Simplify right side
    12,559.50x = 79,857,085.88
  5. Step 5: Solve for x
    x = 79,857,085.88/12,559.50
  6. Step 6: Final answer
    x = 6,358.30

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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.