Home / 18,707.09-28,061.84-5,558.36

Finding the Fourth Proportional to 18,707.09, 28,061.84 and 5,558.36

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Solution

The fourth proportional to 18,707.09, 28,061.84 and 5,558.36 is: 8,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.09 : 28,061.84 = 5,558.36 : x
  2. Step 2: Convert to fraction form
    18,707.09/28,061.84 = 5,558.36/x
  3. Step 3: Cross multiply
    18,707.09x = 28,061.84 × 5,558.36
  4. Step 4: Simplify right side
    18,707.09x = 155,977,682.57
  5. Step 5: Solve for x
    x = 155,977,682.57/18,707.09
  6. Step 6: Final answer
    x = 8,337.89

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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.