Home / 13,945.77-20,915.01-6,548.85

Finding the Fourth Proportional to 13,945.77, 20,915.01 and 6,548.85

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Solution

The fourth proportional to 13,945.77, 20,915.01 and 6,548.85 is: 9,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.77 : 20,915.01 = 6,548.85 : x
  2. Step 2: Convert to fraction form
    13,945.77/20,915.01 = 6,548.85/x
  3. Step 3: Cross multiply
    13,945.77x = 20,915.01 × 6,548.85
  4. Step 4: Simplify right side
    13,945.77x = 136,969,263.24
  5. Step 5: Solve for x
    x = 136,969,263.24/13,945.77
  6. Step 6: Final answer
    x = 9,821.56

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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.