Home / 13,307.05-19,920.70-12,833.90

Finding the Fourth Proportional to 13,307.05, 19,920.70 and 12,833.90

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Solution

The fourth proportional to 13,307.05, 19,920.70 and 12,833.90 is: 19,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.05 : 19,920.70 = 12,833.90 : x
  2. Step 2: Convert to fraction form
    13,307.05/19,920.70 = 12,833.90/x
  3. Step 3: Cross multiply
    13,307.05x = 19,920.70 × 12,833.90
  4. Step 4: Simplify right side
    13,307.05x = 255,660,262.87
  5. Step 5: Solve for x
    x = 255,660,262.87/13,307.05
  6. Step 6: Final answer
    x = 19,212.39

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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.