Home / 12,862.45-19,292.37-8,729.02

Finding the Fourth Proportional to 12,862.45, 19,292.37 and 8,729.02

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Solution

The fourth proportional to 12,862.45, 19,292.37 and 8,729.02 is: 13,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.45 : 19,292.37 = 8,729.02 : x
  2. Step 2: Convert to fraction form
    12,862.45/19,292.37 = 8,729.02/x
  3. Step 3: Cross multiply
    12,862.45x = 19,292.37 × 8,729.02
  4. Step 4: Simplify right side
    12,862.45x = 168,403,483.58
  5. Step 5: Solve for x
    x = 168,403,483.58/12,862.45
  6. Step 6: Final answer
    x = 13,092.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.