Home / 10,911.70-15,057.48-6,435.64

Finding the Fourth Proportional to 10,911.70, 15,057.48 and 6,435.64

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Solution

The fourth proportional to 10,911.70, 15,057.48 and 6,435.64 is: 8,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.70 : 15,057.48 = 6,435.64 : x
  2. Step 2: Convert to fraction form
    10,911.70/15,057.48 = 6,435.64/x
  3. Step 3: Cross multiply
    10,911.70x = 15,057.48 × 6,435.64
  4. Step 4: Simplify right side
    10,911.70x = 96,904,527.34
  5. Step 5: Solve for x
    x = 96,904,527.34/10,911.70
  6. Step 6: Final answer
    x = 8,880.79

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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.