Home / 12,856.78-19,271.67-6,273.91

Finding the Fourth Proportional to 12,856.78, 19,271.67 and 6,273.91

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Solution

The fourth proportional to 12,856.78, 19,271.67 and 6,273.91 is: 9,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.78 : 19,271.67 = 6,273.91 : x
  2. Step 2: Convert to fraction form
    12,856.78/19,271.67 = 6,273.91/x
  3. Step 3: Cross multiply
    12,856.78x = 19,271.67 × 6,273.91
  4. Step 4: Simplify right side
    12,856.78x = 120,908,723.13
  5. Step 5: Solve for x
    x = 120,908,723.13/12,856.78
  6. Step 6: Final answer
    x = 9,404.28

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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.