Home / 13,976.25-19,287.63-7,689.03

Finding the Fourth Proportional to 13,976.25, 19,287.63 and 7,689.03

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Solution

The fourth proportional to 13,976.25, 19,287.63 and 7,689.03 is: 10,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.25 : 19,287.63 = 7,689.03 : x
  2. Step 2: Convert to fraction form
    13,976.25/19,287.63 = 7,689.03/x
  3. Step 3: Cross multiply
    13,976.25x = 19,287.63 × 7,689.03
  4. Step 4: Simplify right side
    13,976.25x = 148,303,165.70
  5. Step 5: Solve for x
    x = 148,303,165.70/13,976.25
  6. Step 6: Final answer
    x = 10,611.08

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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.