Home / 13,069.90-18,040.59-8,354.20

Finding the Fourth Proportional to 13,069.90, 18,040.59 and 8,354.20

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Solution

The fourth proportional to 13,069.90, 18,040.59 and 8,354.20 is: 11,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.90 : 18,040.59 = 8,354.20 : x
  2. Step 2: Convert to fraction form
    13,069.90/18,040.59 = 8,354.20/x
  3. Step 3: Cross multiply
    13,069.90x = 18,040.59 × 8,354.20
  4. Step 4: Simplify right side
    13,069.90x = 150,714,696.98
  5. Step 5: Solve for x
    x = 150,714,696.98/13,069.90
  6. Step 6: Final answer
    x = 11,531.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.