Home / 19,331.71-26,676.50-11,372.40

Finding the Fourth Proportional to 19,331.71, 26,676.50 and 11,372.40

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Solution

The fourth proportional to 19,331.71, 26,676.50 and 11,372.40 is: 15,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.71 : 26,676.50 = 11,372.40 : x
  2. Step 2: Convert to fraction form
    19,331.71/26,676.50 = 11,372.40/x
  3. Step 3: Cross multiply
    19,331.71x = 26,676.50 × 11,372.40
  4. Step 4: Simplify right side
    19,331.71x = 303,375,733.48
  5. Step 5: Solve for x
    x = 303,375,733.48/19,331.71
  6. Step 6: Final answer
    x = 15,693.17

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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.