Home / 8,333.80-11,503.12-4,978.96

Finding the Fourth Proportional to 8,333.80, 11,503.12 and 4,978.96

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Solution

The fourth proportional to 8,333.80, 11,503.12 and 4,978.96 is: 6,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.80 : 11,503.12 = 4,978.96 : x
  2. Step 2: Convert to fraction form
    8,333.80/11,503.12 = 4,978.96/x
  3. Step 3: Cross multiply
    8,333.80x = 11,503.12 × 4,978.96
  4. Step 4: Simplify right side
    8,333.80x = 57,273,574.36
  5. Step 5: Solve for x
    x = 57,273,574.36/8,333.80
  6. Step 6: Final answer
    x = 6,872.44

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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.