Home / 13,146.39-19,722.92-4,381.47

Finding the Fourth Proportional to 13,146.39, 19,722.92 and 4,381.47

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Solution

The fourth proportional to 13,146.39, 19,722.92 and 4,381.47 is: 6,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.39 : 19,722.92 = 4,381.47 : x
  2. Step 2: Convert to fraction form
    13,146.39/19,722.92 = 4,381.47/x
  3. Step 3: Cross multiply
    13,146.39x = 19,722.92 × 4,381.47
  4. Step 4: Simplify right side
    13,146.39x = 86,415,360.39
  5. Step 5: Solve for x
    x = 86,415,360.39/13,146.39
  6. Step 6: Final answer
    x = 6,573.31

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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.