Home / 7,975.78-11,009.06-5,456.94

Finding the Fourth Proportional to 7,975.78, 11,009.06 and 5,456.94

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Solution

The fourth proportional to 7,975.78, 11,009.06 and 5,456.94 is: 7,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.78 : 11,009.06 = 5,456.94 : x
  2. Step 2: Convert to fraction form
    7,975.78/11,009.06 = 5,456.94/x
  3. Step 3: Cross multiply
    7,975.78x = 11,009.06 × 5,456.94
  4. Step 4: Simplify right side
    7,975.78x = 60,075,779.88
  5. Step 5: Solve for x
    x = 60,075,779.88/7,975.78
  6. Step 6: Final answer
    x = 7,532.28

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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.