Home / 19,139.11-26,403.44-12,759.50

Finding the Fourth Proportional to 19,139.11, 26,403.44 and 12,759.50

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Solution

The fourth proportional to 19,139.11, 26,403.44 and 12,759.50 is: 17,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.11 : 26,403.44 = 12,759.50 : x
  2. Step 2: Convert to fraction form
    19,139.11/26,403.44 = 12,759.50/x
  3. Step 3: Cross multiply
    19,139.11x = 26,403.44 × 12,759.50
  4. Step 4: Simplify right side
    19,139.11x = 336,894,694.89
  5. Step 5: Solve for x
    x = 336,894,694.89/19,139.11
  6. Step 6: Final answer
    x = 17,602.42

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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.