Home / 13,686.36-20,529.57-4,452.36

Finding the Fourth Proportional to 13,686.36, 20,529.57 and 4,452.36

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Solution

The fourth proportional to 13,686.36, 20,529.57 and 4,452.36 is: 6,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.36 : 20,529.57 = 4,452.36 : x
  2. Step 2: Convert to fraction form
    13,686.36/20,529.57 = 4,452.36/x
  3. Step 3: Cross multiply
    13,686.36x = 20,529.57 × 4,452.36
  4. Step 4: Simplify right side
    13,686.36x = 91,405,036.29
  5. Step 5: Solve for x
    x = 91,405,036.29/13,686.36
  6. Step 6: Final answer
    x = 6,678.55

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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.