Home / 13,328.42-19,995.94-3,968.40

Finding the Fourth Proportional to 13,328.42, 19,995.94 and 3,968.40

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Solution

The fourth proportional to 13,328.42, 19,995.94 and 3,968.40 is: 5,953.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.42 : 19,995.94 = 3,968.40 : x
  2. Step 2: Convert to fraction form
    13,328.42/19,995.94 = 3,968.40/x
  3. Step 3: Cross multiply
    13,328.42x = 19,995.94 × 3,968.40
  4. Step 4: Simplify right side
    13,328.42x = 79,351,888.30
  5. Step 5: Solve for x
    x = 79,351,888.30/13,328.42
  6. Step 6: Final answer
    x = 5,953.59

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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.