Home / 11,285.06-15,571.16-7,090.88

Finding the Fourth Proportional to 11,285.06, 15,571.16 and 7,090.88

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Solution

The fourth proportional to 11,285.06, 15,571.16 and 7,090.88 is: 9,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.06 : 15,571.16 = 7,090.88 : x
  2. Step 2: Convert to fraction form
    11,285.06/15,571.16 = 7,090.88/x
  3. Step 3: Cross multiply
    11,285.06x = 15,571.16 × 7,090.88
  4. Step 4: Simplify right side
    11,285.06x = 110,413,227.02
  5. Step 5: Solve for x
    x = 110,413,227.02/11,285.06
  6. Step 6: Final answer
    x = 9,784.02

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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.