Home / 19,918.96-27,490.04-10,968.28

Finding the Fourth Proportional to 19,918.96, 27,490.04 and 10,968.28

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Solution

The fourth proportional to 19,918.96, 27,490.04 and 10,968.28 is: 15,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.96 : 27,490.04 = 10,968.28 : x
  2. Step 2: Convert to fraction form
    19,918.96/27,490.04 = 10,968.28/x
  3. Step 3: Cross multiply
    19,918.96x = 27,490.04 × 10,968.28
  4. Step 4: Simplify right side
    19,918.96x = 301,518,455.93
  5. Step 5: Solve for x
    x = 301,518,455.93/19,918.96
  6. Step 6: Final answer
    x = 15,137.26

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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.