Home / 13,448.88-20,294.64-12,960.72

Finding the Fourth Proportional to 13,448.88, 20,294.64 and 12,960.72

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Solution

The fourth proportional to 13,448.88, 20,294.64 and 12,960.72 is: 19,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.88 : 20,294.64 = 12,960.72 : x
  2. Step 2: Convert to fraction form
    13,448.88/20,294.64 = 12,960.72/x
  3. Step 3: Cross multiply
    13,448.88x = 20,294.64 × 12,960.72
  4. Step 4: Simplify right side
    13,448.88x = 263,033,146.54
  5. Step 5: Solve for x
    x = 263,033,146.54/13,448.88
  6. Step 6: Final answer
    x = 19,558.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.