Home / 13,783.36-20,680.50-5,018.96

Finding the Fourth Proportional to 13,783.36, 20,680.50 and 5,018.96

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Solution

The fourth proportional to 13,783.36, 20,680.50 and 5,018.96 is: 7,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.36 : 20,680.50 = 5,018.96 : x
  2. Step 2: Convert to fraction form
    13,783.36/20,680.50 = 5,018.96/x
  3. Step 3: Cross multiply
    13,783.36x = 20,680.50 × 5,018.96
  4. Step 4: Simplify right side
    13,783.36x = 103,794,602.28
  5. Step 5: Solve for x
    x = 103,794,602.28/13,783.36
  6. Step 6: Final answer
    x = 7,530.43

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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.