Home / 17,918.25-26,878.64-5,439.29

Finding the Fourth Proportional to 17,918.25, 26,878.64 and 5,439.29

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Solution

The fourth proportional to 17,918.25, 26,878.64 and 5,439.29 is: 8,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.25 : 26,878.64 = 5,439.29 : x
  2. Step 2: Convert to fraction form
    17,918.25/26,878.64 = 5,439.29/x
  3. Step 3: Cross multiply
    17,918.25x = 26,878.64 × 5,439.29
  4. Step 4: Simplify right side
    17,918.25x = 146,200,569.77
  5. Step 5: Solve for x
    x = 146,200,569.77/17,918.25
  6. Step 6: Final answer
    x = 8,159.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.