Home / 7,984.96-11,026.06-5,005.78

Finding the Fourth Proportional to 7,984.96, 11,026.06 and 5,005.78

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Solution

The fourth proportional to 7,984.96, 11,026.06 and 5,005.78 is: 6,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.96 : 11,026.06 = 5,005.78 : x
  2. Step 2: Convert to fraction form
    7,984.96/11,026.06 = 5,005.78/x
  3. Step 3: Cross multiply
    7,984.96x = 11,026.06 × 5,005.78
  4. Step 4: Simplify right side
    7,984.96x = 55,194,030.63
  5. Step 5: Solve for x
    x = 55,194,030.63/7,984.96
  6. Step 6: Final answer
    x = 6,912.25

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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.