Home / 13,550.66-20,329.08-7,310.55

Finding the Fourth Proportional to 13,550.66, 20,329.08 and 7,310.55

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Solution

The fourth proportional to 13,550.66, 20,329.08 and 7,310.55 is: 10,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.66 : 20,329.08 = 7,310.55 : x
  2. Step 2: Convert to fraction form
    13,550.66/20,329.08 = 7,310.55/x
  3. Step 3: Cross multiply
    13,550.66x = 20,329.08 × 7,310.55
  4. Step 4: Simplify right side
    13,550.66x = 148,616,804.61
  5. Step 5: Solve for x
    x = 148,616,804.61/13,550.66
  6. Step 6: Final answer
    x = 10,967.50

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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.