Home / 19,846.70-27,389.30-11,887.40

Finding the Fourth Proportional to 19,846.70, 27,389.30 and 11,887.40

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Solution

The fourth proportional to 19,846.70, 27,389.30 and 11,887.40 is: 16,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,846.70 : 27,389.30 = 11,887.40 : x
  2. Step 2: Convert to fraction form
    19,846.70/27,389.30 = 11,887.40/x
  3. Step 3: Cross multiply
    19,846.70x = 27,389.30 × 11,887.40
  4. Step 4: Simplify right side
    19,846.70x = 325,587,368.44
  5. Step 5: Solve for x
    x = 325,587,368.44/19,846.70
  6. Step 6: Final answer
    x = 16,405.12

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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.