Home / 13,505.48-18,650.92-8,792.50

Finding the Fourth Proportional to 13,505.48, 18,650.92 and 8,792.50

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Solution

The fourth proportional to 13,505.48, 18,650.92 and 8,792.50 is: 12,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.48 : 18,650.92 = 8,792.50 : x
  2. Step 2: Convert to fraction form
    13,505.48/18,650.92 = 8,792.50/x
  3. Step 3: Cross multiply
    13,505.48x = 18,650.92 × 8,792.50
  4. Step 4: Simplify right side
    13,505.48x = 163,988,214.10
  5. Step 5: Solve for x
    x = 163,988,214.10/13,505.48
  6. Step 6: Final answer
    x = 12,142.35

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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.