Home / 13,015.69-17,961.66-7,047.36

Finding the Fourth Proportional to 13,015.69, 17,961.66 and 7,047.36

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Solution

The fourth proportional to 13,015.69, 17,961.66 and 7,047.36 is: 9,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.69 : 17,961.66 = 7,047.36 : x
  2. Step 2: Convert to fraction form
    13,015.69/17,961.66 = 7,047.36/x
  3. Step 3: Cross multiply
    13,015.69x = 17,961.66 × 7,047.36
  4. Step 4: Simplify right side
    13,015.69x = 126,582,284.22
  5. Step 5: Solve for x
    x = 126,582,284.22/13,015.69
  6. Step 6: Final answer
    x = 9,725.36

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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.