Home / 7,845.36-10,827-4,308.72

Finding the Fourth Proportional to 7,845.36, 10,827 and 4,308.72

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Solution

The fourth proportional to 7,845.36, 10,827 and 4,308.72 is: 5,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.36 : 10,827 = 4,308.72 : x
  2. Step 2: Convert to fraction form
    7,845.36/10,827 = 4,308.72/x
  3. Step 3: Cross multiply
    7,845.36x = 10,827 × 4,308.72
  4. Step 4: Simplify right side
    7,845.36x = 46,650,511.44
  5. Step 5: Solve for x
    x = 46,650,511.44/7,845.36
  6. Step 6: Final answer
    x = 5,946.26

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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.