Home / 12,501.78-17,258.38-7,195.56

Finding the Fourth Proportional to 12,501.78, 17,258.38 and 7,195.56

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Solution

The fourth proportional to 12,501.78, 17,258.38 and 7,195.56 is: 9,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.78 : 17,258.38 = 7,195.56 : x
  2. Step 2: Convert to fraction form
    12,501.78/17,258.38 = 7,195.56/x
  3. Step 3: Cross multiply
    12,501.78x = 17,258.38 × 7,195.56
  4. Step 4: Simplify right side
    12,501.78x = 124,183,708.79
  5. Step 5: Solve for x
    x = 124,183,708.79/12,501.78
  6. Step 6: Final answer
    x = 9,933.28

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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.