Home / 19,155.11-28,707.70-9,787.23

Finding the Fourth Proportional to 19,155.11, 28,707.70 and 9,787.23

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Solution

The fourth proportional to 19,155.11, 28,707.70 and 9,787.23 is: 14,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.11 : 28,707.70 = 9,787.23 : x
  2. Step 2: Convert to fraction form
    19,155.11/28,707.70 = 9,787.23/x
  3. Step 3: Cross multiply
    19,155.11x = 28,707.70 × 9,787.23
  4. Step 4: Simplify right side
    19,155.11x = 280,968,838.20
  5. Step 5: Solve for x
    x = 280,968,838.20/19,155.11
  6. Step 6: Final answer
    x = 14,668.09

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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.