Home / 8,969.36-13,435.80-6,636.32

Finding the Fourth Proportional to 8,969.36, 13,435.80 and 6,636.32

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Solution

The fourth proportional to 8,969.36, 13,435.80 and 6,636.32 is: 9,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.36 : 13,435.80 = 6,636.32 : x
  2. Step 2: Convert to fraction form
    8,969.36/13,435.80 = 6,636.32/x
  3. Step 3: Cross multiply
    8,969.36x = 13,435.80 × 6,636.32
  4. Step 4: Simplify right side
    8,969.36x = 89,164,268.26
  5. Step 5: Solve for x
    x = 89,164,268.26/8,969.36
  6. Step 6: Final answer
    x = 9,940.98

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1.5x scale

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.