Home / 11,740.80-16,203.18-6,435.72

Finding the Fourth Proportional to 11,740.80, 16,203.18 and 6,435.72

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Solution

The fourth proportional to 11,740.80, 16,203.18 and 6,435.72 is: 8,881.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,740.80 : 16,203.18 = 6,435.72 : x
  2. Step 2: Convert to fraction form
    11,740.80/16,203.18 = 6,435.72/x
  3. Step 3: Cross multiply
    11,740.80x = 16,203.18 × 6,435.72
  4. Step 4: Simplify right side
    11,740.80x = 104,279,129.59
  5. Step 5: Solve for x
    x = 104,279,129.59/11,740.80
  6. Step 6: Final answer
    x = 8,881.77

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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.