Home / 13,257.90-18,297.36-7,954.02

Finding the Fourth Proportional to 13,257.90, 18,297.36 and 7,954.02

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Solution

The fourth proportional to 13,257.90, 18,297.36 and 7,954.02 is: 10,977.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.90 : 18,297.36 = 7,954.02 : x
  2. Step 2: Convert to fraction form
    13,257.90/18,297.36 = 7,954.02/x
  3. Step 3: Cross multiply
    13,257.90x = 18,297.36 × 7,954.02
  4. Step 4: Simplify right side
    13,257.90x = 145,537,567.39
  5. Step 5: Solve for x
    x = 145,537,567.39/13,257.90
  6. Step 6: Final answer
    x = 10,977.42

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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.