Home / 13,015.90-17,961.73-7,047.52

Finding the Fourth Proportional to 13,015.90, 17,961.73 and 7,047.52

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Solution

The fourth proportional to 13,015.90, 17,961.73 and 7,047.52 is: 9,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.90 : 17,961.73 = 7,047.52 : x
  2. Step 2: Convert to fraction form
    13,015.90/17,961.73 = 7,047.52/x
  3. Step 3: Cross multiply
    13,015.90x = 17,961.73 × 7,047.52
  4. Step 4: Simplify right side
    13,015.90x = 126,585,651.41
  5. Step 5: Solve for x
    x = 126,585,651.41/13,015.90
  6. Step 6: Final answer
    x = 9,725.46

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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.