Home / 14,980.12-22,471.44-5,115.40

Finding the Fourth Proportional to 14,980.12, 22,471.44 and 5,115.40

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Solution

The fourth proportional to 14,980.12, 22,471.44 and 5,115.40 is: 7,673.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.12 : 22,471.44 = 5,115.40 : x
  2. Step 2: Convert to fraction form
    14,980.12/22,471.44 = 5,115.40/x
  3. Step 3: Cross multiply
    14,980.12x = 22,471.44 × 5,115.40
  4. Step 4: Simplify right side
    14,980.12x = 114,950,404.18
  5. Step 5: Solve for x
    x = 114,950,404.18/14,980.12
  6. Step 6: Final answer
    x = 7,673.53

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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.