Home / 15,555.39-23,311.22-6,771.89

Finding the Fourth Proportional to 15,555.39, 23,311.22 and 6,771.89

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Solution

The fourth proportional to 15,555.39, 23,311.22 and 6,771.89 is: 10,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.39 : 23,311.22 = 6,771.89 : x
  2. Step 2: Convert to fraction form
    15,555.39/23,311.22 = 6,771.89/x
  3. Step 3: Cross multiply
    15,555.39x = 23,311.22 × 6,771.89
  4. Step 4: Simplify right side
    15,555.39x = 157,860,867.19
  5. Step 5: Solve for x
    x = 157,860,867.19/15,555.39
  6. Step 6: Final answer
    x = 10,148.31

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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.