Home / 11,677.69-16,111.45-6,897.81

Finding the Fourth Proportional to 11,677.69, 16,111.45 and 6,897.81

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Solution

The fourth proportional to 11,677.69, 16,111.45 and 6,897.81 is: 9,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.69 : 16,111.45 = 6,897.81 : x
  2. Step 2: Convert to fraction form
    11,677.69/16,111.45 = 6,897.81/x
  3. Step 3: Cross multiply
    11,677.69x = 16,111.45 × 6,897.81
  4. Step 4: Simplify right side
    11,677.69x = 111,133,703.68
  5. Step 5: Solve for x
    x = 111,133,703.68/11,677.69
  6. Step 6: Final answer
    x = 9,516.76

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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.