Home / 15,651.55-21,627.78-11,395.22

Finding the Fourth Proportional to 15,651.55, 21,627.78 and 11,395.22

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Solution

The fourth proportional to 15,651.55, 21,627.78 and 11,395.22 is: 15,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.55 : 21,627.78 = 11,395.22 : x
  2. Step 2: Convert to fraction form
    15,651.55/21,627.78 = 11,395.22/x
  3. Step 3: Cross multiply
    15,651.55x = 21,627.78 × 11,395.22
  4. Step 4: Simplify right side
    15,651.55x = 246,453,365.28
  5. Step 5: Solve for x
    x = 246,453,365.28/15,651.55
  6. Step 6: Final answer
    x = 15,746.26

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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.