Home / 13,987.02-19,297.74-7,936.26

Finding the Fourth Proportional to 13,987.02, 19,297.74 and 7,936.26

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Solution

The fourth proportional to 13,987.02, 19,297.74 and 7,936.26 is: 10,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.02 : 19,297.74 = 7,936.26 : x
  2. Step 2: Convert to fraction form
    13,987.02/19,297.74 = 7,936.26/x
  3. Step 3: Cross multiply
    13,987.02x = 19,297.74 × 7,936.26
  4. Step 4: Simplify right side
    13,987.02x = 153,151,882.05
  5. Step 5: Solve for x
    x = 153,151,882.05/13,987.02
  6. Step 6: Final answer
    x = 10,949.57

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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.