Home / 19,331.31-26,687.12-11,883.63

Finding the Fourth Proportional to 19,331.31, 26,687.12 and 11,883.63

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Solution

The fourth proportional to 19,331.31, 26,687.12 and 11,883.63 is: 16,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.31 : 26,687.12 = 11,883.63 : x
  2. Step 2: Convert to fraction form
    19,331.31/26,687.12 = 11,883.63/x
  3. Step 3: Cross multiply
    19,331.31x = 26,687.12 × 11,883.63
  4. Step 4: Simplify right side
    19,331.31x = 317,139,800.43
  5. Step 5: Solve for x
    x = 317,139,800.43/19,331.31
  6. Step 6: Final answer
    x = 16,405.50

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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.