Home / 11,285.99-15,570.84-6,505.79

Finding the Fourth Proportional to 11,285.99, 15,570.84 and 6,505.79

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Solution

The fourth proportional to 11,285.99, 15,570.84 and 6,505.79 is: 8,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.99 : 15,570.84 = 6,505.79 : x
  2. Step 2: Convert to fraction form
    11,285.99/15,570.84 = 6,505.79/x
  3. Step 3: Cross multiply
    11,285.99x = 15,570.84 × 6,505.79
  4. Step 4: Simplify right side
    11,285.99x = 101,300,537.31
  5. Step 5: Solve for x
    x = 101,300,537.31/11,285.99
  6. Step 6: Final answer
    x = 8,975.78

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Double scale
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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.