Home / 13,940.30-19,236.74-7,652.64

Finding the Fourth Proportional to 13,940.30, 19,236.74 and 7,652.64

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Solution

The fourth proportional to 13,940.30, 19,236.74 and 7,652.64 is: 10,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.30 : 19,236.74 = 7,652.64 : x
  2. Step 2: Convert to fraction form
    13,940.30/19,236.74 = 7,652.64/x
  3. Step 3: Cross multiply
    13,940.30x = 19,236.74 × 7,652.64
  4. Step 4: Simplify right side
    13,940.30x = 147,211,845.99
  5. Step 5: Solve for x
    x = 147,211,845.99/13,940.30
  6. Step 6: Final answer
    x = 10,560.16

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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.