Home / 13,606.97-20,406.56-5,285.21

Finding the Fourth Proportional to 13,606.97, 20,406.56 and 5,285.21

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Solution

The fourth proportional to 13,606.97, 20,406.56 and 5,285.21 is: 7,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.97 : 20,406.56 = 5,285.21 : x
  2. Step 2: Convert to fraction form
    13,606.97/20,406.56 = 5,285.21/x
  3. Step 3: Cross multiply
    13,606.97x = 20,406.56 × 5,285.21
  4. Step 4: Simplify right side
    13,606.97x = 107,852,826.52
  5. Step 5: Solve for x
    x = 107,852,826.52/13,606.97
  6. Step 6: Final answer
    x = 7,926.30

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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.