Home / 13,975.03-19,285.95-7,687.41

Finding the Fourth Proportional to 13,975.03, 19,285.95 and 7,687.41

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Solution

The fourth proportional to 13,975.03, 19,285.95 and 7,687.41 is: 10,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.03 : 19,285.95 = 7,687.41 : x
  2. Step 2: Convert to fraction form
    13,975.03/19,285.95 = 7,687.41/x
  3. Step 3: Cross multiply
    13,975.03x = 19,285.95 × 7,687.41
  4. Step 4: Simplify right side
    13,975.03x = 148,258,918.15
  5. Step 5: Solve for x
    x = 148,258,918.15/13,975.03
  6. Step 6: Final answer
    x = 10,608.84

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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.