Home / 12,354.48-18,531.68-6,804.90

Finding the Fourth Proportional to 12,354.48, 18,531.68 and 6,804.90

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Solution

The fourth proportional to 12,354.48, 18,531.68 and 6,804.90 is: 10,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.48 : 18,531.68 = 6,804.90 : x
  2. Step 2: Convert to fraction form
    12,354.48/18,531.68 = 6,804.90/x
  3. Step 3: Cross multiply
    12,354.48x = 18,531.68 × 6,804.90
  4. Step 4: Simplify right side
    12,354.48x = 126,106,195.21
  5. Step 5: Solve for x
    x = 126,106,195.21/12,354.48
  6. Step 6: Final answer
    x = 10,207.33

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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.