Home / 17,078.40-25,617.60-7,215.12

Finding the Fourth Proportional to 17,078.40, 25,617.60 and 7,215.12

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Solution

The fourth proportional to 17,078.40, 25,617.60 and 7,215.12 is: 10,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,078.40 : 25,617.60 = 7,215.12 : x
  2. Step 2: Convert to fraction form
    17,078.40/25,617.60 = 7,215.12/x
  3. Step 3: Cross multiply
    17,078.40x = 25,617.60 × 7,215.12
  4. Step 4: Simplify right side
    17,078.40x = 184,834,058.11
  5. Step 5: Solve for x
    x = 184,834,058.11/17,078.40
  6. Step 6: Final answer
    x = 10,822.68

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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.