Home / 8,419.36-11,619.30-4,883.80

Finding the Fourth Proportional to 8,419.36, 11,619.30 and 4,883.80

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Solution

The fourth proportional to 8,419.36, 11,619.30 and 4,883.80 is: 6,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.36 : 11,619.30 = 4,883.80 : x
  2. Step 2: Convert to fraction form
    8,419.36/11,619.30 = 4,883.80/x
  3. Step 3: Cross multiply
    8,419.36x = 11,619.30 × 4,883.80
  4. Step 4: Simplify right side
    8,419.36x = 56,746,337.34
  5. Step 5: Solve for x
    x = 56,746,337.34/8,419.36
  6. Step 6: Final answer
    x = 6,739.98

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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.