Home / 8,272.81-11,428.09-7,525.45

Finding the Fourth Proportional to 8,272.81, 11,428.09 and 7,525.45

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Solution

The fourth proportional to 8,272.81, 11,428.09 and 7,525.45 is: 10,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.81 : 11,428.09 = 7,525.45 : x
  2. Step 2: Convert to fraction form
    8,272.81/11,428.09 = 7,525.45/x
  3. Step 3: Cross multiply
    8,272.81x = 11,428.09 × 7,525.45
  4. Step 4: Simplify right side
    8,272.81x = 86,001,519.89
  5. Step 5: Solve for x
    x = 86,001,519.89/8,272.81
  6. Step 6: Final answer
    x = 10,395.68

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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.