Home / 13,618.53-18,795.33-7,650.20

Finding the Fourth Proportional to 13,618.53, 18,795.33 and 7,650.20

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Solution

The fourth proportional to 13,618.53, 18,795.33 and 7,650.20 is: 10,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.53 : 18,795.33 = 7,650.20 : x
  2. Step 2: Convert to fraction form
    13,618.53/18,795.33 = 7,650.20/x
  3. Step 3: Cross multiply
    13,618.53x = 18,795.33 × 7,650.20
  4. Step 4: Simplify right side
    13,618.53x = 143,788,033.57
  5. Step 5: Solve for x
    x = 143,788,033.57/13,618.53
  6. Step 6: Final answer
    x = 10,558.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.