Home / 13,214.22-18,235.59-7,245.75

Finding the Fourth Proportional to 13,214.22, 18,235.59 and 7,245.75

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Solution

The fourth proportional to 13,214.22, 18,235.59 and 7,245.75 is: 9,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.22 : 18,235.59 = 7,245.75 : x
  2. Step 2: Convert to fraction form
    13,214.22/18,235.59 = 7,245.75/x
  3. Step 3: Cross multiply
    13,214.22x = 18,235.59 × 7,245.75
  4. Step 4: Simplify right side
    13,214.22x = 132,130,435.06
  5. Step 5: Solve for x
    x = 132,130,435.06/13,214.22
  6. Step 6: Final answer
    x = 9,999.11

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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.