Home / 13,167.46-18,176.07-8,940.43

Finding the Fourth Proportional to 13,167.46, 18,176.07 and 8,940.43

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Solution

The fourth proportional to 13,167.46, 18,176.07 and 8,940.43 is: 12,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.46 : 18,176.07 = 8,940.43 : x
  2. Step 2: Convert to fraction form
    13,167.46/18,176.07 = 8,940.43/x
  3. Step 3: Cross multiply
    13,167.46x = 18,176.07 × 8,940.43
  4. Step 4: Simplify right side
    13,167.46x = 162,501,881.51
  5. Step 5: Solve for x
    x = 162,501,881.51/13,167.46
  6. Step 6: Final answer
    x = 12,341.17

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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.