Home / 9,296.64-12,816.69-6,639.44

Finding the Fourth Proportional to 9,296.64, 12,816.69 and 6,639.44

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Solution

The fourth proportional to 9,296.64, 12,816.69 and 6,639.44 is: 9,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,296.64 : 12,816.69 = 6,639.44 : x
  2. Step 2: Convert to fraction form
    9,296.64/12,816.69 = 6,639.44/x
  3. Step 3: Cross multiply
    9,296.64x = 12,816.69 × 6,639.44
  4. Step 4: Simplify right side
    9,296.64x = 85,095,580.17
  5. Step 5: Solve for x
    x = 85,095,580.17/9,296.64
  6. Step 6: Final answer
    x = 9,153.37

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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.