Home / 11,678.29-16,116.38-6,373.45

Finding the Fourth Proportional to 11,678.29, 16,116.38 and 6,373.45

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Solution

The fourth proportional to 11,678.29, 16,116.38 and 6,373.45 is: 8,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.29 : 16,116.38 = 6,373.45 : x
  2. Step 2: Convert to fraction form
    11,678.29/16,116.38 = 6,373.45/x
  3. Step 3: Cross multiply
    11,678.29x = 16,116.38 × 6,373.45
  4. Step 4: Simplify right side
    11,678.29x = 102,716,942.11
  5. Step 5: Solve for x
    x = 102,716,942.11/11,678.29
  6. Step 6: Final answer
    x = 8,795.55

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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.