Home / 8,306.16-12,456.99-4,143.08

Finding the Fourth Proportional to 8,306.16, 12,456.99 and 4,143.08

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Solution

The fourth proportional to 8,306.16, 12,456.99 and 4,143.08 is: 6,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.16 : 12,456.99 = 4,143.08 : x
  2. Step 2: Convert to fraction form
    8,306.16/12,456.99 = 4,143.08/x
  3. Step 3: Cross multiply
    8,306.16x = 12,456.99 × 4,143.08
  4. Step 4: Simplify right side
    8,306.16x = 51,610,243.84
  5. Step 5: Solve for x
    x = 51,610,243.84/8,306.16
  6. Step 6: Final answer
    x = 6,213.49

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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.