Home / 14,177.60-21,252.68-7,940.64

Finding the Fourth Proportional to 14,177.60, 21,252.68 and 7,940.64

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Solution

The fourth proportional to 14,177.60, 21,252.68 and 7,940.64 is: 11,903.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.60 : 21,252.68 = 7,940.64 : x
  2. Step 2: Convert to fraction form
    14,177.60/21,252.68 = 7,940.64/x
  3. Step 3: Cross multiply
    14,177.60x = 21,252.68 × 7,940.64
  4. Step 4: Simplify right side
    14,177.60x = 168,759,880.92
  5. Step 5: Solve for x
    x = 168,759,880.92/14,177.60
  6. Step 6: Final answer
    x = 11,903.28

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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.