Home / 8,070.68-12,102.12-3,389.36

Finding the Fourth Proportional to 8,070.68, 12,102.12 and 3,389.36

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Solution

The fourth proportional to 8,070.68, 12,102.12 and 3,389.36 is: 5,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.68 : 12,102.12 = 3,389.36 : x
  2. Step 2: Convert to fraction form
    8,070.68/12,102.12 = 3,389.36/x
  3. Step 3: Cross multiply
    8,070.68x = 12,102.12 × 3,389.36
  4. Step 4: Simplify right side
    8,070.68x = 41,018,441.44
  5. Step 5: Solve for x
    x = 41,018,441.44/8,070.68
  6. Step 6: Final answer
    x = 5,082.40

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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.