Home / 14,605.38-20,156.04-8,640.54

Finding the Fourth Proportional to 14,605.38, 20,156.04 and 8,640.54

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Solution

The fourth proportional to 14,605.38, 20,156.04 and 8,640.54 is: 11,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.38 : 20,156.04 = 8,640.54 : x
  2. Step 2: Convert to fraction form
    14,605.38/20,156.04 = 8,640.54/x
  3. Step 3: Cross multiply
    14,605.38x = 20,156.04 × 8,640.54
  4. Step 4: Simplify right side
    14,605.38x = 174,159,069.86
  5. Step 5: Solve for x
    x = 174,159,069.86/14,605.38
  6. Step 6: Final answer
    x = 11,924.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.