Home / 13,015.37-17,961.36-7,709.16

Finding the Fourth Proportional to 13,015.37, 17,961.36 and 7,709.16

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Solution

The fourth proportional to 13,015.37, 17,961.36 and 7,709.16 is: 10,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.37 : 17,961.36 = 7,709.16 : x
  2. Step 2: Convert to fraction form
    13,015.37/17,961.36 = 7,709.16/x
  3. Step 3: Cross multiply
    13,015.37x = 17,961.36 × 7,709.16
  4. Step 4: Simplify right side
    13,015.37x = 138,466,998.06
  5. Step 5: Solve for x
    x = 138,466,998.06/13,015.37
  6. Step 6: Final answer
    x = 10,638.73

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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.