Home / 11,678.09-16,116.16-6,373.20

Finding the Fourth Proportional to 11,678.09, 16,116.16 and 6,373.20

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Solution

The fourth proportional to 11,678.09, 16,116.16 and 6,373.20 is: 8,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.09 : 16,116.16 = 6,373.20 : x
  2. Step 2: Convert to fraction form
    11,678.09/16,116.16 = 6,373.20/x
  3. Step 3: Cross multiply
    11,678.09x = 16,116.16 × 6,373.20
  4. Step 4: Simplify right side
    11,678.09x = 102,711,494.98
  5. Step 5: Solve for x
    x = 102,711,494.98/11,678.09
  6. Step 6: Final answer
    x = 8,795.23

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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.