Home / 14,379.84-21,550.32-7,459.20

Finding the Fourth Proportional to 14,379.84, 21,550.32 and 7,459.20

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Solution

The fourth proportional to 14,379.84, 21,550.32 and 7,459.20 is: 11,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.84 : 21,550.32 = 7,459.20 : x
  2. Step 2: Convert to fraction form
    14,379.84/21,550.32 = 7,459.20/x
  3. Step 3: Cross multiply
    14,379.84x = 21,550.32 × 7,459.20
  4. Step 4: Simplify right side
    14,379.84x = 160,748,146.94
  5. Step 5: Solve for x
    x = 160,748,146.94/14,379.84
  6. Step 6: Final answer
    x = 11,178.72

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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.