Home / 13,407.54-20,085.15-8,776.50

Finding the Fourth Proportional to 13,407.54, 20,085.15 and 8,776.50

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Solution

The fourth proportional to 13,407.54, 20,085.15 and 8,776.50 is: 13,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.54 : 20,085.15 = 8,776.50 : x
  2. Step 2: Convert to fraction form
    13,407.54/20,085.15 = 8,776.50/x
  3. Step 3: Cross multiply
    13,407.54x = 20,085.15 × 8,776.50
  4. Step 4: Simplify right side
    13,407.54x = 176,277,318.98
  5. Step 5: Solve for x
    x = 176,277,318.98/13,407.54
  6. Step 6: Final answer
    x = 13,147.63

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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.