Home / 9,869.11-14,777.20-5,687.89

Finding the Fourth Proportional to 9,869.11, 14,777.20 and 5,687.89

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Solution

The fourth proportional to 9,869.11, 14,777.20 and 5,687.89 is: 8,516.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.11 : 14,777.20 = 5,687.89 : x
  2. Step 2: Convert to fraction form
    9,869.11/14,777.20 = 5,687.89/x
  3. Step 3: Cross multiply
    9,869.11x = 14,777.20 × 5,687.89
  4. Step 4: Simplify right side
    9,869.11x = 84,051,088.11
  5. Step 5: Solve for x
    x = 84,051,088.11/9,869.11
  6. Step 6: Final answer
    x = 8,516.58

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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.