Home / 12,742.29-17,583.51-7,076.58

Finding the Fourth Proportional to 12,742.29, 17,583.51 and 7,076.58

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Solution

The fourth proportional to 12,742.29, 17,583.51 and 7,076.58 is: 9,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.29 : 17,583.51 = 7,076.58 : x
  2. Step 2: Convert to fraction form
    12,742.29/17,583.51 = 7,076.58/x
  3. Step 3: Cross multiply
    12,742.29x = 17,583.51 × 7,076.58
  4. Step 4: Simplify right side
    12,742.29x = 124,431,115.20
  5. Step 5: Solve for x
    x = 124,431,115.20/12,742.29
  6. Step 6: Final answer
    x = 9,765.21

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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.