Home / 13,618.56-20,433.66-7,696.26

Finding the Fourth Proportional to 13,618.56, 20,433.66 and 7,696.26

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Solution

The fourth proportional to 13,618.56, 20,433.66 and 7,696.26 is: 11,547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.56 : 20,433.66 = 7,696.26 : x
  2. Step 2: Convert to fraction form
    13,618.56/20,433.66 = 7,696.26/x
  3. Step 3: Cross multiply
    13,618.56x = 20,433.66 × 7,696.26
  4. Step 4: Simplify right side
    13,618.56x = 157,262,760.11
  5. Step 5: Solve for x
    x = 157,262,760.11/13,618.56
  6. Step 6: Final answer
    x = 11,547.68

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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.