Home / 13,700.24-20,533.84-6,669.72

Finding the Fourth Proportional to 13,700.24, 20,533.84 and 6,669.72

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Solution

The fourth proportional to 13,700.24, 20,533.84 and 6,669.72 is: 9,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.24 : 20,533.84 = 6,669.72 : x
  2. Step 2: Convert to fraction form
    13,700.24/20,533.84 = 6,669.72/x
  3. Step 3: Cross multiply
    13,700.24x = 20,533.84 × 6,669.72
  4. Step 4: Simplify right side
    13,700.24x = 136,954,946.65
  5. Step 5: Solve for x
    x = 136,954,946.65/13,700.24
  6. Step 6: Final answer
    x = 9,996.54

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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.