Home / 13,767.21-18,999.90-8,463.33

Finding the Fourth Proportional to 13,767.21, 18,999.90 and 8,463.33

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Solution

The fourth proportional to 13,767.21, 18,999.90 and 8,463.33 is: 11,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.21 : 18,999.90 = 8,463.33 : x
  2. Step 2: Convert to fraction form
    13,767.21/18,999.90 = 8,463.33/x
  3. Step 3: Cross multiply
    13,767.21x = 18,999.90 × 8,463.33
  4. Step 4: Simplify right side
    13,767.21x = 160,802,423.67
  5. Step 5: Solve for x
    x = 160,802,423.67/13,767.21
  6. Step 6: Final answer
    x = 11,680.10

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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.