Home / 10,920.57-16,383.62-4,677.45

Finding the Fourth Proportional to 10,920.57, 16,383.62 and 4,677.45

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Solution

The fourth proportional to 10,920.57, 16,383.62 and 4,677.45 is: 7,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.57 : 16,383.62 = 4,677.45 : x
  2. Step 2: Convert to fraction form
    10,920.57/16,383.62 = 4,677.45/x
  3. Step 3: Cross multiply
    10,920.57x = 16,383.62 × 4,677.45
  4. Step 4: Simplify right side
    10,920.57x = 76,633,539.98
  5. Step 5: Solve for x
    x = 76,633,539.98/10,920.57
  6. Step 6: Final answer
    x = 7,017.36

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1.5x scale

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.