Home / 8,172.21-12,258.33-2,328.81

Finding the Fourth Proportional to 8,172.21, 12,258.33 and 2,328.81

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Solution

The fourth proportional to 8,172.21, 12,258.33 and 2,328.81 is: 3,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.21 : 12,258.33 = 2,328.81 : x
  2. Step 2: Convert to fraction form
    8,172.21/12,258.33 = 2,328.81/x
  3. Step 3: Cross multiply
    8,172.21x = 12,258.33 × 2,328.81
  4. Step 4: Simplify right side
    8,172.21x = 28,547,321.49
  5. Step 5: Solve for x
    x = 28,547,321.49/8,172.21
  6. Step 6: Final answer
    x = 3,493.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.