Home / 14,120.46-19,489.01-8,151.77

Finding the Fourth Proportional to 14,120.46, 19,489.01 and 8,151.77

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Solution

The fourth proportional to 14,120.46, 19,489.01 and 8,151.77 is: 11,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.46 : 19,489.01 = 8,151.77 : x
  2. Step 2: Convert to fraction form
    14,120.46/19,489.01 = 8,151.77/x
  3. Step 3: Cross multiply
    14,120.46x = 19,489.01 × 8,151.77
  4. Step 4: Simplify right side
    14,120.46x = 158,869,935.01
  5. Step 5: Solve for x
    x = 158,869,935.01/14,120.46
  6. Step 6: Final answer
    x = 11,251.05

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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.