Home / 17,787.21-26,662.59-6,686.16

Finding the Fourth Proportional to 17,787.21, 26,662.59 and 6,686.16

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Solution

The fourth proportional to 17,787.21, 26,662.59 and 6,686.16 is: 10,022.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.21 : 26,662.59 = 6,686.16 : x
  2. Step 2: Convert to fraction form
    17,787.21/26,662.59 = 6,686.16/x
  3. Step 3: Cross multiply
    17,787.21x = 26,662.59 × 6,686.16
  4. Step 4: Simplify right side
    17,787.21x = 178,270,342.75
  5. Step 5: Solve for x
    x = 178,270,342.75/17,787.21
  6. Step 6: Final answer
    x = 10,022.39

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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.