Home / 13,328.25-19,984.93-8,387.30

Finding the Fourth Proportional to 13,328.25, 19,984.93 and 8,387.30

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Solution

The fourth proportional to 13,328.25, 19,984.93 and 8,387.30 is: 12,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.25 : 19,984.93 = 8,387.30 : x
  2. Step 2: Convert to fraction form
    13,328.25/19,984.93 = 8,387.30/x
  3. Step 3: Cross multiply
    13,328.25x = 19,984.93 × 8,387.30
  4. Step 4: Simplify right side
    13,328.25x = 167,619,519.97
  5. Step 5: Solve for x
    x = 167,619,519.97/13,328.25
  6. Step 6: Final answer
    x = 12,576.26

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1.5x scale

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.