Home / 13,090.41-18,065.43-12,167.82

Finding the Fourth Proportional to 13,090.41, 18,065.43 and 12,167.82

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Solution

The fourth proportional to 13,090.41, 18,065.43 and 12,167.82 is: 16,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.41 : 18,065.43 = 12,167.82 : x
  2. Step 2: Convert to fraction form
    13,090.41/18,065.43 = 12,167.82/x
  3. Step 3: Cross multiply
    13,090.41x = 18,065.43 × 12,167.82
  4. Step 4: Simplify right side
    13,090.41x = 219,816,900.46
  5. Step 5: Solve for x
    x = 219,816,900.46/13,090.41
  6. Step 6: Final answer
    x = 16,792.21

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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.