Home / 12,537.55-18,802.22-4,215.33

Finding the Fourth Proportional to 12,537.55, 18,802.22 and 4,215.33

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Solution

The fourth proportional to 12,537.55, 18,802.22 and 4,215.33 is: 6,321.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.55 : 18,802.22 = 4,215.33 : x
  2. Step 2: Convert to fraction form
    12,537.55/18,802.22 = 4,215.33/x
  3. Step 3: Cross multiply
    12,537.55x = 18,802.22 × 4,215.33
  4. Step 4: Simplify right side
    12,537.55x = 79,257,572.57
  5. Step 5: Solve for x
    x = 79,257,572.57/12,537.55
  6. Step 6: Final answer
    x = 6,321.62

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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.