Home / 9,145.37-13,736.28-8,629.58

Finding the Fourth Proportional to 9,145.37, 13,736.28 and 8,629.58

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Solution

The fourth proportional to 9,145.37, 13,736.28 and 8,629.58 is: 12,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.37 : 13,736.28 = 8,629.58 : x
  2. Step 2: Convert to fraction form
    9,145.37/13,736.28 = 8,629.58/x
  3. Step 3: Cross multiply
    9,145.37x = 13,736.28 × 8,629.58
  4. Step 4: Simplify right side
    9,145.37x = 118,538,327.16
  5. Step 5: Solve for x
    x = 118,538,327.16/9,145.37
  6. Step 6: Final answer
    x = 12,961.57

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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.