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Finding the Fourth Proportional to 14,043, 19,379.40 and 7,755.84

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Solution

The fourth proportional to 14,043, 19,379.40 and 7,755.84 is: 10,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043 : 19,379.40 = 7,755.84 : x
  2. Step 2: Convert to fraction form
    14,043/19,379.40 = 7,755.84/x
  3. Step 3: Cross multiply
    14,043x = 19,379.40 × 7,755.84
  4. Step 4: Simplify right side
    14,043x = 150,303,525.70
  5. Step 5: Solve for x
    x = 150,303,525.70/14,043
  6. Step 6: Final answer
    x = 10,703.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.