Home / 8,325.36-11,485.12-5,135.98

Finding the Fourth Proportional to 8,325.36, 11,485.12 and 5,135.98

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Solution

The fourth proportional to 8,325.36, 11,485.12 and 5,135.98 is: 7,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.36 : 11,485.12 = 5,135.98 : x
  2. Step 2: Convert to fraction form
    8,325.36/11,485.12 = 5,135.98/x
  3. Step 3: Cross multiply
    8,325.36x = 11,485.12 × 5,135.98
  4. Step 4: Simplify right side
    8,325.36x = 58,987,346.62
  5. Step 5: Solve for x
    x = 58,987,346.62/8,325.36
  6. Step 6: Final answer
    x = 7,085.26

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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.