Home / 13,577.89-18,724.36-9,543.41

Finding the Fourth Proportional to 13,577.89, 18,724.36 and 9,543.41

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Solution

The fourth proportional to 13,577.89, 18,724.36 and 9,543.41 is: 13,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.89 : 18,724.36 = 9,543.41 : x
  2. Step 2: Convert to fraction form
    13,577.89/18,724.36 = 9,543.41/x
  3. Step 3: Cross multiply
    13,577.89x = 18,724.36 × 9,543.41
  4. Step 4: Simplify right side
    13,577.89x = 178,694,196.75
  5. Step 5: Solve for x
    x = 178,694,196.75/13,577.89
  6. Step 6: Final answer
    x = 13,160.68

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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.