Home / 8,416.31-12,610.51-5,119.43

Finding the Fourth Proportional to 8,416.31, 12,610.51 and 5,119.43

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Solution

The fourth proportional to 8,416.31, 12,610.51 and 5,119.43 is: 7,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.31 : 12,610.51 = 5,119.43 : x
  2. Step 2: Convert to fraction form
    8,416.31/12,610.51 = 5,119.43/x
  3. Step 3: Cross multiply
    8,416.31x = 12,610.51 × 5,119.43
  4. Step 4: Simplify right side
    8,416.31x = 64,558,623.21
  5. Step 5: Solve for x
    x = 64,558,623.21/8,416.31
  6. Step 6: Final answer
    x = 7,670.66

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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.