Home / 13,315.19-19,981.69-5,524.00

Finding the Fourth Proportional to 13,315.19, 19,981.69 and 5,524.00

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Solution

The fourth proportional to 13,315.19, 19,981.69 and 5,524.00 is: 8,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.19 : 19,981.69 = 5,524.00 : x
  2. Step 2: Convert to fraction form
    13,315.19/19,981.69 = 5,524.00/x
  3. Step 3: Cross multiply
    13,315.19x = 19,981.69 × 5,524.00
  4. Step 4: Simplify right side
    13,315.19x = 110,378,791.80
  5. Step 5: Solve for x
    x = 110,378,791.80/13,315.19
  6. Step 6: Final answer
    x = 8,289.69

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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.