Home / 11,810.86-16,299.03-6,505.66

Finding the Fourth Proportional to 11,810.86, 16,299.03 and 6,505.66

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Solution

The fourth proportional to 11,810.86, 16,299.03 and 6,505.66 is: 8,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.86 : 16,299.03 = 6,505.66 : x
  2. Step 2: Convert to fraction form
    11,810.86/16,299.03 = 6,505.66/x
  3. Step 3: Cross multiply
    11,810.86x = 16,299.03 × 6,505.66
  4. Step 4: Simplify right side
    11,810.86x = 106,035,931.25
  5. Step 5: Solve for x
    x = 106,035,931.25/11,810.86
  6. Step 6: Final answer
    x = 8,977.84

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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.