Home / 18,569.10-27,878.37-10,783.50

Finding the Fourth Proportional to 18,569.10, 27,878.37 and 10,783.50

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Solution

The fourth proportional to 18,569.10, 27,878.37 and 10,783.50 is: 16,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.10 : 27,878.37 = 10,783.50 : x
  2. Step 2: Convert to fraction form
    18,569.10/27,878.37 = 10,783.50/x
  3. Step 3: Cross multiply
    18,569.10x = 27,878.37 × 10,783.50
  4. Step 4: Simplify right side
    18,569.10x = 300,626,402.90
  5. Step 5: Solve for x
    x = 300,626,402.90/18,569.10
  6. Step 6: Final answer
    x = 16,189.61

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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.