Home / 19,126.70-28,690.05-8,045.90

Finding the Fourth Proportional to 19,126.70, 28,690.05 and 8,045.90

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Solution

The fourth proportional to 19,126.70, 28,690.05 and 8,045.90 is: 12,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.70 : 28,690.05 = 8,045.90 : x
  2. Step 2: Convert to fraction form
    19,126.70/28,690.05 = 8,045.90/x
  3. Step 3: Cross multiply
    19,126.70x = 28,690.05 × 8,045.90
  4. Step 4: Simplify right side
    19,126.70x = 230,837,273.30
  5. Step 5: Solve for x
    x = 230,837,273.30/19,126.70
  6. Step 6: Final answer
    x = 12,068.85

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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.