Home / 13,015.37-17,961.21-7,047.05

Finding the Fourth Proportional to 13,015.37, 17,961.21 and 7,047.05

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Solution

The fourth proportional to 13,015.37, 17,961.21 and 7,047.05 is: 9,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.37 : 17,961.21 = 7,047.05 : x
  2. Step 2: Convert to fraction form
    13,015.37/17,961.21 = 7,047.05/x
  3. Step 3: Cross multiply
    13,015.37x = 17,961.21 × 7,047.05
  4. Step 4: Simplify right side
    13,015.37x = 126,573,455.12
  5. Step 5: Solve for x
    x = 126,573,455.12/13,015.37
  6. Step 6: Final answer
    x = 9,724.92

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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.