Home / 12,287.30-18,430.34-4,495.50

Finding the Fourth Proportional to 12,287.30, 18,430.34 and 4,495.50

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Solution

The fourth proportional to 12,287.30, 18,430.34 and 4,495.50 is: 6,743.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.30 : 18,430.34 = 4,495.50 : x
  2. Step 2: Convert to fraction form
    12,287.30/18,430.34 = 4,495.50/x
  3. Step 3: Cross multiply
    12,287.30x = 18,430.34 × 4,495.50
  4. Step 4: Simplify right side
    12,287.30x = 82,853,570.99
  5. Step 5: Solve for x
    x = 82,853,570.99/12,287.30
  6. Step 6: Final answer
    x = 6,743.03

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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.