Home / 13,164.93-18,167.95-7,862.80

Finding the Fourth Proportional to 13,164.93, 18,167.95 and 7,862.80

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Solution

The fourth proportional to 13,164.93, 18,167.95 and 7,862.80 is: 10,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.93 : 18,167.95 = 7,862.80 : x
  2. Step 2: Convert to fraction form
    13,164.93/18,167.95 = 7,862.80/x
  3. Step 3: Cross multiply
    13,164.93x = 18,167.95 × 7,862.80
  4. Step 4: Simplify right side
    13,164.93x = 142,850,917.95
  5. Step 5: Solve for x
    x = 142,850,917.95/13,164.93
  6. Step 6: Final answer
    x = 10,850.87

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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.