Home / 13,696.96-20,558.28-7,127.80

Finding the Fourth Proportional to 13,696.96, 20,558.28 and 7,127.80

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Solution

The fourth proportional to 13,696.96, 20,558.28 and 7,127.80 is: 10,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.96 : 20,558.28 = 7,127.80 : x
  2. Step 2: Convert to fraction form
    13,696.96/20,558.28 = 7,127.80/x
  3. Step 3: Cross multiply
    13,696.96x = 20,558.28 × 7,127.80
  4. Step 4: Simplify right side
    13,696.96x = 146,535,308.18
  5. Step 5: Solve for x
    x = 146,535,308.18/13,696.96
  6. Step 6: Final answer
    x = 10,698.38

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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.