Home / 11,811.46-16,299.81-6,506.28

Finding the Fourth Proportional to 11,811.46, 16,299.81 and 6,506.28

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Solution

The fourth proportional to 11,811.46, 16,299.81 and 6,506.28 is: 8,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.46 : 16,299.81 = 6,506.28 : x
  2. Step 2: Convert to fraction form
    11,811.46/16,299.81 = 6,506.28/x
  3. Step 3: Cross multiply
    11,811.46x = 16,299.81 × 6,506.28
  4. Step 4: Simplify right side
    11,811.46x = 106,051,127.81
  5. Step 5: Solve for x
    x = 106,051,127.81/11,811.46
  6. Step 6: Final answer
    x = 8,978.66

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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.