Home / 13,546.35-20,312.24-5,643.99

Finding the Fourth Proportional to 13,546.35, 20,312.24 and 5,643.99

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Solution

The fourth proportional to 13,546.35, 20,312.24 and 5,643.99 is: 8,462.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.35 : 20,312.24 = 5,643.99 : x
  2. Step 2: Convert to fraction form
    13,546.35/20,312.24 = 5,643.99/x
  3. Step 3: Cross multiply
    13,546.35x = 20,312.24 × 5,643.99
  4. Step 4: Simplify right side
    13,546.35x = 114,642,051.22
  5. Step 5: Solve for x
    x = 114,642,051.22/13,546.35
  6. Step 6: Final answer
    x = 8,462.95

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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.