Home / 12,920.55-19,381.23-4,600.44

Finding the Fourth Proportional to 12,920.55, 19,381.23 and 4,600.44

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Solution

The fourth proportional to 12,920.55, 19,381.23 and 4,600.44 is: 6,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920.55 : 19,381.23 = 4,600.44 : x
  2. Step 2: Convert to fraction form
    12,920.55/19,381.23 = 4,600.44/x
  3. Step 3: Cross multiply
    12,920.55x = 19,381.23 × 4,600.44
  4. Step 4: Simplify right side
    12,920.55x = 89,162,185.74
  5. Step 5: Solve for x
    x = 89,162,185.74/12,920.55
  6. Step 6: Final answer
    x = 6,900.80

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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.