Home / 13,130.29-18,113.94-8,092.68

Finding the Fourth Proportional to 13,130.29, 18,113.94 and 8,092.68

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Solution

The fourth proportional to 13,130.29, 18,113.94 and 8,092.68 is: 11,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.29 : 18,113.94 = 8,092.68 : x
  2. Step 2: Convert to fraction form
    13,130.29/18,113.94 = 8,092.68/x
  3. Step 3: Cross multiply
    13,130.29x = 18,113.94 × 8,092.68
  4. Step 4: Simplify right side
    13,130.29x = 146,590,252.03
  5. Step 5: Solve for x
    x = 146,590,252.03/13,130.29
  6. Step 6: Final answer
    x = 11,164.28

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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.