Home / 11,107.16-15,328.62-6,392.60

Finding the Fourth Proportional to 11,107.16, 15,328.62 and 6,392.60

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Solution

The fourth proportional to 11,107.16, 15,328.62 and 6,392.60 is: 8,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.16 : 15,328.62 = 6,392.60 : x
  2. Step 2: Convert to fraction form
    11,107.16/15,328.62 = 6,392.60/x
  3. Step 3: Cross multiply
    11,107.16x = 15,328.62 × 6,392.60
  4. Step 4: Simplify right side
    11,107.16x = 97,989,736.21
  5. Step 5: Solve for x
    x = 97,989,736.21/11,107.16
  6. Step 6: Final answer
    x = 8,822.21

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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.