Home / 8,457.18-12,687.36-2,612.42

Finding the Fourth Proportional to 8,457.18, 12,687.36 and 2,612.42

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Solution

The fourth proportional to 8,457.18, 12,687.36 and 2,612.42 is: 3,919.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.18 : 12,687.36 = 2,612.42 : x
  2. Step 2: Convert to fraction form
    8,457.18/12,687.36 = 2,612.42/x
  3. Step 3: Cross multiply
    8,457.18x = 12,687.36 × 2,612.42
  4. Step 4: Simplify right side
    8,457.18x = 33,144,713.01
  5. Step 5: Solve for x
    x = 33,144,713.01/8,457.18
  6. Step 6: Final answer
    x = 3,919.12

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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.