Home / 13,550.79-20,329.83-4,784.61

Finding the Fourth Proportional to 13,550.79, 20,329.83 and 4,784.61

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Solution

The fourth proportional to 13,550.79, 20,329.83 and 4,784.61 is: 7,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.79 : 20,329.83 = 4,784.61 : x
  2. Step 2: Convert to fraction form
    13,550.79/20,329.83 = 4,784.61/x
  3. Step 3: Cross multiply
    13,550.79x = 20,329.83 × 4,784.61
  4. Step 4: Simplify right side
    13,550.79x = 97,270,307.92
  5. Step 5: Solve for x
    x = 97,270,307.92/13,550.79
  6. Step 6: Final answer
    x = 7,178.20

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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.