Home / 12,868.40-19,306.76-4,103.39

Finding the Fourth Proportional to 12,868.40, 19,306.76 and 4,103.39

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Solution

The fourth proportional to 12,868.40, 19,306.76 and 4,103.39 is: 6,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.40 : 19,306.76 = 4,103.39 : x
  2. Step 2: Convert to fraction form
    12,868.40/19,306.76 = 4,103.39/x
  3. Step 3: Cross multiply
    12,868.40x = 19,306.76 × 4,103.39
  4. Step 4: Simplify right side
    12,868.40x = 79,223,193.67
  5. Step 5: Solve for x
    x = 79,223,193.67/12,868.40
  6. Step 6: Final answer
    x = 6,156.41

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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.