Home / 11,835.12-16,317.48-7,801.32

Finding the Fourth Proportional to 11,835.12, 16,317.48 and 7,801.32

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Solution

The fourth proportional to 11,835.12, 16,317.48 and 7,801.32 is: 10,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.12 : 16,317.48 = 7,801.32 : x
  2. Step 2: Convert to fraction form
    11,835.12/16,317.48 = 7,801.32/x
  3. Step 3: Cross multiply
    11,835.12x = 16,317.48 × 7,801.32
  4. Step 4: Simplify right side
    11,835.12x = 127,297,883.07
  5. Step 5: Solve for x
    x = 127,297,883.07/11,835.12
  6. Step 6: Final answer
    x = 10,755.94

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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.