Home / 12,868.07-19,308.70-9,747.03

Finding the Fourth Proportional to 12,868.07, 19,308.70 and 9,747.03

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Solution

The fourth proportional to 12,868.07, 19,308.70 and 9,747.03 is: 14,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.07 : 19,308.70 = 9,747.03 : x
  2. Step 2: Convert to fraction form
    12,868.07/19,308.70 = 9,747.03/x
  3. Step 3: Cross multiply
    12,868.07x = 19,308.70 × 9,747.03
  4. Step 4: Simplify right side
    12,868.07x = 188,202,590.17
  5. Step 5: Solve for x
    x = 188,202,590.17/12,868.07
  6. Step 6: Final answer
    x = 14,625.55

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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.