Home / 13,580.61-18,723.72-8,792.07

Finding the Fourth Proportional to 13,580.61, 18,723.72 and 8,792.07

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Solution

The fourth proportional to 13,580.61, 18,723.72 and 8,792.07 is: 12,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.61 : 18,723.72 = 8,792.07 : x
  2. Step 2: Convert to fraction form
    13,580.61/18,723.72 = 8,792.07/x
  3. Step 3: Cross multiply
    13,580.61x = 18,723.72 × 8,792.07
  4. Step 4: Simplify right side
    13,580.61x = 164,620,256.90
  5. Step 5: Solve for x
    x = 164,620,256.90/13,580.61
  6. Step 6: Final answer
    x = 12,121.71

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1.5x scale

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.