Home / 13,676.24-20,513.40-7,814.48

Finding the Fourth Proportional to 13,676.24, 20,513.40 and 7,814.48

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Solution

The fourth proportional to 13,676.24, 20,513.40 and 7,814.48 is: 11,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.24 : 20,513.40 = 7,814.48 : x
  2. Step 2: Convert to fraction form
    13,676.24/20,513.40 = 7,814.48/x
  3. Step 3: Cross multiply
    13,676.24x = 20,513.40 × 7,814.48
  4. Step 4: Simplify right side
    13,676.24x = 160,301,554.03
  5. Step 5: Solve for x
    x = 160,301,554.03/13,676.24
  6. Step 6: Final answer
    x = 11,721.17

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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.