Home / 8,628.48-11,907.61-5,272.79

Finding the Fourth Proportional to 8,628.48, 11,907.61 and 5,272.79

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Solution

The fourth proportional to 8,628.48, 11,907.61 and 5,272.79 is: 7,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.48 : 11,907.61 = 5,272.79 : x
  2. Step 2: Convert to fraction form
    8,628.48/11,907.61 = 5,272.79/x
  3. Step 3: Cross multiply
    8,628.48x = 11,907.61 × 5,272.79
  4. Step 4: Simplify right side
    8,628.48x = 62,786,254.21
  5. Step 5: Solve for x
    x = 62,786,254.21/8,628.48
  6. Step 6: Final answer
    x = 7,276.63

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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.