Home / 14,647.29-21,977.75-5,291.11

Finding the Fourth Proportional to 14,647.29, 21,977.75 and 5,291.11

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Solution

The fourth proportional to 14,647.29, 21,977.75 and 5,291.11 is: 7,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.29 : 21,977.75 = 5,291.11 : x
  2. Step 2: Convert to fraction form
    14,647.29/21,977.75 = 5,291.11/x
  3. Step 3: Cross multiply
    14,647.29x = 21,977.75 × 5,291.11
  4. Step 4: Simplify right side
    14,647.29x = 116,286,692.80
  5. Step 5: Solve for x
    x = 116,286,692.80/14,647.29
  6. Step 6: Final answer
    x = 7,939.13

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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.