Home / 13,008.58-19,512.89-3,147.82

Finding the Fourth Proportional to 13,008.58, 19,512.89 and 3,147.82

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Solution

The fourth proportional to 13,008.58, 19,512.89 and 3,147.82 is: 4,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.58 : 19,512.89 = 3,147.82 : x
  2. Step 2: Convert to fraction form
    13,008.58/19,512.89 = 3,147.82/x
  3. Step 3: Cross multiply
    13,008.58x = 19,512.89 × 3,147.82
  4. Step 4: Simplify right side
    13,008.58x = 61,423,065.40
  5. Step 5: Solve for x
    x = 61,423,065.40/13,008.58
  6. Step 6: Final answer
    x = 4,721.73

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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.