Home / 12,495.36-17,241.84-7,188.24

Finding the Fourth Proportional to 12,495.36, 17,241.84 and 7,188.24

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Solution

The fourth proportional to 12,495.36, 17,241.84 and 7,188.24 is: 9,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.36 : 17,241.84 = 7,188.24 : x
  2. Step 2: Convert to fraction form
    12,495.36/17,241.84 = 7,188.24/x
  3. Step 3: Cross multiply
    12,495.36x = 17,241.84 × 7,188.24
  4. Step 4: Simplify right side
    12,495.36x = 123,938,483.96
  5. Step 5: Solve for x
    x = 123,938,483.96/12,495.36
  6. Step 6: Final answer
    x = 9,918.76

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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.