Home / 9,664.76-13,335.54-9,172.64

Finding the Fourth Proportional to 9,664.76, 13,335.54 and 9,172.64

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Solution

The fourth proportional to 9,664.76, 13,335.54 and 9,172.64 is: 12,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,664.76 : 13,335.54 = 9,172.64 : x
  2. Step 2: Convert to fraction form
    9,664.76/13,335.54 = 9,172.64/x
  3. Step 3: Cross multiply
    9,664.76x = 13,335.54 × 9,172.64
  4. Step 4: Simplify right side
    9,664.76x = 122,322,107.63
  5. Step 5: Solve for x
    x = 122,322,107.63/9,664.76
  6. Step 6: Final answer
    x = 12,656.51

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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.