Home / 9,419.64-12,996.06-6,728.58

Finding the Fourth Proportional to 9,419.64, 12,996.06 and 6,728.58

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Solution

The fourth proportional to 9,419.64, 12,996.06 and 6,728.58 is: 9,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.64 : 12,996.06 = 6,728.58 : x
  2. Step 2: Convert to fraction form
    9,419.64/12,996.06 = 6,728.58/x
  3. Step 3: Cross multiply
    9,419.64x = 12,996.06 × 6,728.58
  4. Step 4: Simplify right side
    9,419.64x = 87,445,029.39
  5. Step 5: Solve for x
    x = 87,445,029.39/9,419.64
  6. Step 6: Final answer
    x = 9,283.27

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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.