Home / 13,630.02-20,450.43-5,312.54

Finding the Fourth Proportional to 13,630.02, 20,450.43 and 5,312.54

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Solution

The fourth proportional to 13,630.02, 20,450.43 and 5,312.54 is: 7,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.02 : 20,450.43 = 5,312.54 : x
  2. Step 2: Convert to fraction form
    13,630.02/20,450.43 = 5,312.54/x
  3. Step 3: Cross multiply
    13,630.02x = 20,450.43 × 5,312.54
  4. Step 4: Simplify right side
    13,630.02x = 108,643,625.14
  5. Step 5: Solve for x
    x = 108,643,625.14/13,630.02
  6. Step 6: Final answer
    x = 7,970.91

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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.