Home / 12,818.24-19,229.40-4,920.44

Finding the Fourth Proportional to 12,818.24, 19,229.40 and 4,920.44

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Solution

The fourth proportional to 12,818.24, 19,229.40 and 4,920.44 is: 7,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.24 : 19,229.40 = 4,920.44 : x
  2. Step 2: Convert to fraction form
    12,818.24/19,229.40 = 4,920.44/x
  3. Step 3: Cross multiply
    12,818.24x = 19,229.40 × 4,920.44
  4. Step 4: Simplify right side
    12,818.24x = 94,617,012.79
  5. Step 5: Solve for x
    x = 94,617,012.79/12,818.24
  6. Step 6: Final answer
    x = 7,381.44

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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.