Home / 13,330.16-19,991.76-3,967.64

Finding the Fourth Proportional to 13,330.16, 19,991.76 and 3,967.64

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Solution

The fourth proportional to 13,330.16, 19,991.76 and 3,967.64 is: 5,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.16 : 19,991.76 = 3,967.64 : x
  2. Step 2: Convert to fraction form
    13,330.16/19,991.76 = 3,967.64/x
  3. Step 3: Cross multiply
    13,330.16x = 19,991.76 × 3,967.64
  4. Step 4: Simplify right side
    13,330.16x = 79,320,106.65
  5. Step 5: Solve for x
    x = 79,320,106.65/13,330.16
  6. Step 6: Final answer
    x = 5,950.42

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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.