Home / 12,201.16-16,839.40-7,725.32

Finding the Fourth Proportional to 12,201.16, 16,839.40 and 7,725.32

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Solution

The fourth proportional to 12,201.16, 16,839.40 and 7,725.32 is: 10,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.16 : 16,839.40 = 7,725.32 : x
  2. Step 2: Convert to fraction form
    12,201.16/16,839.40 = 7,725.32/x
  3. Step 3: Cross multiply
    12,201.16x = 16,839.40 × 7,725.32
  4. Step 4: Simplify right side
    12,201.16x = 130,089,753.61
  5. Step 5: Solve for x
    x = 130,089,753.61/12,201.16
  6. Step 6: Final answer
    x = 10,662.08

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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.