Home / 14,012.24-21,018.36-4,778

Finding the Fourth Proportional to 14,012.24, 21,018.36 and 4,778

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Solution

The fourth proportional to 14,012.24, 21,018.36 and 4,778 is: 7,167

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.24 : 21,018.36 = 4,778 : x
  2. Step 2: Convert to fraction form
    14,012.24/21,018.36 = 4,778/x
  3. Step 3: Cross multiply
    14,012.24x = 21,018.36 × 4,778
  4. Step 4: Simplify right side
    14,012.24x = 100,425,724.08
  5. Step 5: Solve for x
    x = 100,425,724.08/14,012.24
  6. Step 6: Final answer
    x = 7,167

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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.