Home / 19,487.39-29,189.16-11,143.98

Finding the Fourth Proportional to 19,487.39, 29,189.16 and 11,143.98

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Solution

The fourth proportional to 19,487.39, 29,189.16 and 11,143.98 is: 16,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.39 : 29,189.16 = 11,143.98 : x
  2. Step 2: Convert to fraction form
    19,487.39/29,189.16 = 11,143.98/x
  3. Step 3: Cross multiply
    19,487.39x = 29,189.16 × 11,143.98
  4. Step 4: Simplify right side
    19,487.39x = 325,283,415.26
  5. Step 5: Solve for x
    x = 325,283,415.26/19,487.39
  6. Step 6: Final answer
    x = 16,692.00

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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.