Home / 8,424.90-11,628.68-4,889.25

Finding the Fourth Proportional to 8,424.90, 11,628.68 and 4,889.25

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Solution

The fourth proportional to 8,424.90, 11,628.68 and 4,889.25 is: 6,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.90 : 11,628.68 = 4,889.25 : x
  2. Step 2: Convert to fraction form
    8,424.90/11,628.68 = 4,889.25/x
  3. Step 3: Cross multiply
    8,424.90x = 11,628.68 × 4,889.25
  4. Step 4: Simplify right side
    8,424.90x = 56,855,499.24
  5. Step 5: Solve for x
    x = 56,855,499.24/8,424.90
  6. Step 6: Final answer
    x = 6,748.51

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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.