Home / 8,940.90-12,334.59-5,402.06

Finding the Fourth Proportional to 8,940.90, 12,334.59 and 5,402.06

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Solution

The fourth proportional to 8,940.90, 12,334.59 and 5,402.06 is: 7,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.90 : 12,334.59 = 5,402.06 : x
  2. Step 2: Convert to fraction form
    8,940.90/12,334.59 = 5,402.06/x
  3. Step 3: Cross multiply
    8,940.90x = 12,334.59 × 5,402.06
  4. Step 4: Simplify right side
    8,940.90x = 66,632,226.09
  5. Step 5: Solve for x
    x = 66,632,226.09/8,940.90
  6. Step 6: Final answer
    x = 7,452.52

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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.