Home / 9,729.36-13,418.64-6,543.36

Finding the Fourth Proportional to 9,729.36, 13,418.64 and 6,543.36

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Solution

The fourth proportional to 9,729.36, 13,418.64 and 6,543.36 is: 9,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.36 : 13,418.64 = 6,543.36 : x
  2. Step 2: Convert to fraction form
    9,729.36/13,418.64 = 6,543.36/x
  3. Step 3: Cross multiply
    9,729.36x = 13,418.64 × 6,543.36
  4. Step 4: Simplify right side
    9,729.36x = 87,802,992.23
  5. Step 5: Solve for x
    x = 87,802,992.23/9,729.36
  6. Step 6: Final answer
    x = 9,024.54

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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.