Home / 11,725.01-16,180.52-6,420.16

Finding the Fourth Proportional to 11,725.01, 16,180.52 and 6,420.16

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Solution

The fourth proportional to 11,725.01, 16,180.52 and 6,420.16 is: 8,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.01 : 16,180.52 = 6,420.16 : x
  2. Step 2: Convert to fraction form
    11,725.01/16,180.52 = 6,420.16/x
  3. Step 3: Cross multiply
    11,725.01x = 16,180.52 × 6,420.16
  4. Step 4: Simplify right side
    11,725.01x = 103,881,414.28
  5. Step 5: Solve for x
    x = 103,881,414.28/11,725.01
  6. Step 6: Final answer
    x = 8,859.81

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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.