Home / 8,976.48-13,455.36-5,275.68

Finding the Fourth Proportional to 8,976.48, 13,455.36 and 5,275.68

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Solution

The fourth proportional to 8,976.48, 13,455.36 and 5,275.68 is: 7,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.48 : 13,455.36 = 5,275.68 : x
  2. Step 2: Convert to fraction form
    8,976.48/13,455.36 = 5,275.68/x
  3. Step 3: Cross multiply
    8,976.48x = 13,455.36 × 5,275.68
  4. Step 4: Simplify right side
    8,976.48x = 70,986,173.64
  5. Step 5: Solve for x
    x = 70,986,173.64/8,976.48
  6. Step 6: Final answer
    x = 7,908.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.