Home / 11,679.12-16,117.14-6,374.16

Finding the Fourth Proportional to 11,679.12, 16,117.14 and 6,374.16

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Solution

The fourth proportional to 11,679.12, 16,117.14 and 6,374.16 is: 8,796.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.12 : 16,117.14 = 6,374.16 : x
  2. Step 2: Convert to fraction form
    11,679.12/16,117.14 = 6,374.16/x
  3. Step 3: Cross multiply
    11,679.12x = 16,117.14 × 6,374.16
  4. Step 4: Simplify right side
    11,679.12x = 102,733,229.10
  5. Step 5: Solve for x
    x = 102,733,229.10/11,679.12
  6. Step 6: Final answer
    x = 8,796.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.