Home / 12,430.26-18,643.37-3,663.16

Finding the Fourth Proportional to 12,430.26, 18,643.37 and 3,663.16

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Solution

The fourth proportional to 12,430.26, 18,643.37 and 3,663.16 is: 5,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.26 : 18,643.37 = 3,663.16 : x
  2. Step 2: Convert to fraction form
    12,430.26/18,643.37 = 3,663.16/x
  3. Step 3: Cross multiply
    12,430.26x = 18,643.37 × 3,663.16
  4. Step 4: Simplify right side
    12,430.26x = 68,293,582.32
  5. Step 5: Solve for x
    x = 68,293,582.32/12,430.26
  6. Step 6: Final answer
    x = 5,494.14

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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.