Home / 9,291.36-12,821.97-5,258.15

Finding the Fourth Proportional to 9,291.36, 12,821.97 and 5,258.15

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Solution

The fourth proportional to 9,291.36, 12,821.97 and 5,258.15 is: 7,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.36 : 12,821.97 = 5,258.15 : x
  2. Step 2: Convert to fraction form
    9,291.36/12,821.97 = 5,258.15/x
  3. Step 3: Cross multiply
    9,291.36x = 12,821.97 × 5,258.15
  4. Step 4: Simplify right side
    9,291.36x = 67,419,777.45
  5. Step 5: Solve for x
    x = 67,419,777.45/9,291.36
  6. Step 6: Final answer
    x = 7,256.18

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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.