Home / 12,748.68-19,122.84-3,983.64

Finding the Fourth Proportional to 12,748.68, 19,122.84 and 3,983.64

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Solution

The fourth proportional to 12,748.68, 19,122.84 and 3,983.64 is: 5,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.68 : 19,122.84 = 3,983.64 : x
  2. Step 2: Convert to fraction form
    12,748.68/19,122.84 = 3,983.64/x
  3. Step 3: Cross multiply
    12,748.68x = 19,122.84 × 3,983.64
  4. Step 4: Simplify right side
    12,748.68x = 76,178,510.34
  5. Step 5: Solve for x
    x = 76,178,510.34/12,748.68
  6. Step 6: Final answer
    x = 5,975.40

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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.