Home / 11,931.81-16,465.61-6,895.94

Finding the Fourth Proportional to 11,931.81, 16,465.61 and 6,895.94

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Solution

The fourth proportional to 11,931.81, 16,465.61 and 6,895.94 is: 9,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.81 : 16,465.61 = 6,895.94 : x
  2. Step 2: Convert to fraction form
    11,931.81/16,465.61 = 6,895.94/x
  3. Step 3: Cross multiply
    11,931.81x = 16,465.61 × 6,895.94
  4. Step 4: Simplify right side
    11,931.81x = 113,545,793.54
  5. Step 5: Solve for x
    x = 113,545,793.54/11,931.81
  6. Step 6: Final answer
    x = 9,516.23

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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.