Home / 13,877.78-20,820.09-4,018.06

Finding the Fourth Proportional to 13,877.78, 20,820.09 and 4,018.06

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Solution

The fourth proportional to 13,877.78, 20,820.09 and 4,018.06 is: 6,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.78 : 20,820.09 = 4,018.06 : x
  2. Step 2: Convert to fraction form
    13,877.78/20,820.09 = 4,018.06/x
  3. Step 3: Cross multiply
    13,877.78x = 20,820.09 × 4,018.06
  4. Step 4: Simplify right side
    13,877.78x = 83,656,318.78
  5. Step 5: Solve for x
    x = 83,656,318.78/13,877.78
  6. Step 6: Final answer
    x = 6,028.08

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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.