Home / 12,837.40-19,217.70-11,301.40

Finding the Fourth Proportional to 12,837.40, 19,217.70 and 11,301.40

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Solution

The fourth proportional to 12,837.40, 19,217.70 and 11,301.40 is: 16,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.40 : 19,217.70 = 11,301.40 : x
  2. Step 2: Convert to fraction form
    12,837.40/19,217.70 = 11,301.40/x
  3. Step 3: Cross multiply
    12,837.40x = 19,217.70 × 11,301.40
  4. Step 4: Simplify right side
    12,837.40x = 217,186,914.78
  5. Step 5: Solve for x
    x = 217,186,914.78/12,837.40
  6. Step 6: Final answer
    x = 16,918.29

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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.