Home / 19,504.64-26,907.72-12,428.48

Finding the Fourth Proportional to 19,504.64, 26,907.72 and 12,428.48

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Solution

The fourth proportional to 19,504.64, 26,907.72 and 12,428.48 is: 17,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,504.64 : 26,907.72 = 12,428.48 : x
  2. Step 2: Convert to fraction form
    19,504.64/26,907.72 = 12,428.48/x
  3. Step 3: Cross multiply
    19,504.64x = 26,907.72 × 12,428.48
  4. Step 4: Simplify right side
    19,504.64x = 334,422,059.87
  5. Step 5: Solve for x
    x = 334,422,059.87/19,504.64
  6. Step 6: Final answer
    x = 17,145.77

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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.