Home / 8,331.33-12,492.75-2,782.68

Finding the Fourth Proportional to 8,331.33, 12,492.75 and 2,782.68

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Solution

The fourth proportional to 8,331.33, 12,492.75 and 2,782.68 is: 4,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.33 : 12,492.75 = 2,782.68 : x
  2. Step 2: Convert to fraction form
    8,331.33/12,492.75 = 2,782.68/x
  3. Step 3: Cross multiply
    8,331.33x = 12,492.75 × 2,782.68
  4. Step 4: Simplify right side
    8,331.33x = 34,763,325.57
  5. Step 5: Solve for x
    x = 34,763,325.57/8,331.33
  6. Step 6: Final answer
    x = 4,172.60

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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.