Home / 13,548.76-18,694.26-7,881.64

Finding the Fourth Proportional to 13,548.76, 18,694.26 and 7,881.64

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Solution

The fourth proportional to 13,548.76, 18,694.26 and 7,881.64 is: 10,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.76 : 18,694.26 = 7,881.64 : x
  2. Step 2: Convert to fraction form
    13,548.76/18,694.26 = 7,881.64/x
  3. Step 3: Cross multiply
    13,548.76x = 18,694.26 × 7,881.64
  4. Step 4: Simplify right side
    13,548.76x = 147,341,427.39
  5. Step 5: Solve for x
    x = 147,341,427.39/13,548.76
  6. Step 6: Final answer
    x = 10,874.90

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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.