Home / 8,347.28-11,518.44-4,989.42

Finding the Fourth Proportional to 8,347.28, 11,518.44 and 4,989.42

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Solution

The fourth proportional to 8,347.28, 11,518.44 and 4,989.42 is: 6,884.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.28 : 11,518.44 = 4,989.42 : x
  2. Step 2: Convert to fraction form
    8,347.28/11,518.44 = 4,989.42/x
  3. Step 3: Cross multiply
    8,347.28x = 11,518.44 × 4,989.42
  4. Step 4: Simplify right side
    8,347.28x = 57,470,334.90
  5. Step 5: Solve for x
    x = 57,470,334.90/8,347.28
  6. Step 6: Final answer
    x = 6,884.92

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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.