Home / 19,194.47-26,478.25-13,215.76

Finding the Fourth Proportional to 19,194.47, 26,478.25 and 13,215.76

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Solution

The fourth proportional to 19,194.47, 26,478.25 and 13,215.76 is: 18,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,194.47 : 26,478.25 = 13,215.76 : x
  2. Step 2: Convert to fraction form
    19,194.47/26,478.25 = 13,215.76/x
  3. Step 3: Cross multiply
    19,194.47x = 26,478.25 × 13,215.76
  4. Step 4: Simplify right side
    19,194.47x = 349,930,246.84
  5. Step 5: Solve for x
    x = 349,930,246.84/19,194.47
  6. Step 6: Final answer
    x = 18,230.78

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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.