Home / 13,374.89-18,456.34-7,323.80

Finding the Fourth Proportional to 13,374.89, 18,456.34 and 7,323.80

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Solution

The fourth proportional to 13,374.89, 18,456.34 and 7,323.80 is: 10,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.89 : 18,456.34 = 7,323.80 : x
  2. Step 2: Convert to fraction form
    13,374.89/18,456.34 = 7,323.80/x
  3. Step 3: Cross multiply
    13,374.89x = 18,456.34 × 7,323.80
  4. Step 4: Simplify right side
    13,374.89x = 135,170,506.27
  5. Step 5: Solve for x
    x = 135,170,506.27/13,374.89
  6. Step 6: Final answer
    x = 10,106.29

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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.