Home / 14,821.85-20,446.19-9,157.85

Finding the Fourth Proportional to 14,821.85, 20,446.19 and 9,157.85

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Solution

The fourth proportional to 14,821.85, 20,446.19 and 9,157.85 is: 12,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.85 : 20,446.19 = 9,157.85 : x
  2. Step 2: Convert to fraction form
    14,821.85/20,446.19 = 9,157.85/x
  3. Step 3: Cross multiply
    14,821.85x = 20,446.19 × 9,157.85
  4. Step 4: Simplify right side
    14,821.85x = 187,243,095.30
  5. Step 5: Solve for x
    x = 187,243,095.30/14,821.85
  6. Step 6: Final answer
    x = 12,632.91

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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.