Home / 8,968.43-12,382.53-5,612.60

Finding the Fourth Proportional to 8,968.43, 12,382.53 and 5,612.60

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Solution

The fourth proportional to 8,968.43, 12,382.53 and 5,612.60 is: 7,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.43 : 12,382.53 = 5,612.60 : x
  2. Step 2: Convert to fraction form
    8,968.43/12,382.53 = 5,612.60/x
  3. Step 3: Cross multiply
    8,968.43x = 12,382.53 × 5,612.60
  4. Step 4: Simplify right side
    8,968.43x = 69,498,187.88
  5. Step 5: Solve for x
    x = 69,498,187.88/8,968.43
  6. Step 6: Final answer
    x = 7,749.20

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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.