Home / 13,110.93-18,092.43-7,142.24

Finding the Fourth Proportional to 13,110.93, 18,092.43 and 7,142.24

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Solution

The fourth proportional to 13,110.93, 18,092.43 and 7,142.24 is: 9,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.93 : 18,092.43 = 7,142.24 : x
  2. Step 2: Convert to fraction form
    13,110.93/18,092.43 = 7,142.24/x
  3. Step 3: Cross multiply
    13,110.93x = 18,092.43 × 7,142.24
  4. Step 4: Simplify right side
    13,110.93x = 129,220,386.78
  5. Step 5: Solve for x
    x = 129,220,386.78/13,110.93
  6. Step 6: Final answer
    x = 9,855.93

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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.