Home / 13,918.89-20,877.39-6,525

Finding the Fourth Proportional to 13,918.89, 20,877.39 and 6,525

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Solution

The fourth proportional to 13,918.89, 20,877.39 and 6,525 is: 9,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.89 : 20,877.39 = 6,525 : x
  2. Step 2: Convert to fraction form
    13,918.89/20,877.39 = 6,525/x
  3. Step 3: Cross multiply
    13,918.89x = 20,877.39 × 6,525
  4. Step 4: Simplify right side
    13,918.89x = 136,224,969.75
  5. Step 5: Solve for x
    x = 136,224,969.75/13,918.89
  6. Step 6: Final answer
    x = 9,787.06

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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.