Home / 13,015.50-17,961.41-7,047.18

Finding the Fourth Proportional to 13,015.50, 17,961.41 and 7,047.18

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Solution

The fourth proportional to 13,015.50, 17,961.41 and 7,047.18 is: 9,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.50 : 17,961.41 = 7,047.18 : x
  2. Step 2: Convert to fraction form
    13,015.50/17,961.41 = 7,047.18/x
  3. Step 3: Cross multiply
    13,015.50x = 17,961.41 × 7,047.18
  4. Step 4: Simplify right side
    13,015.50x = 126,577,289.32
  5. Step 5: Solve for x
    x = 126,577,289.32/13,015.50
  6. Step 6: Final answer
    x = 9,725.12

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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.