Home / 13,648.50-18,814.48-11,126.77

Finding the Fourth Proportional to 13,648.50, 18,814.48 and 11,126.77

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Solution

The fourth proportional to 13,648.50, 18,814.48 and 11,126.77 is: 15,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.50 : 18,814.48 = 11,126.77 : x
  2. Step 2: Convert to fraction form
    13,648.50/18,814.48 = 11,126.77/x
  3. Step 3: Cross multiply
    13,648.50x = 18,814.48 × 11,126.77
  4. Step 4: Simplify right side
    13,648.50x = 209,344,316.78
  5. Step 5: Solve for x
    x = 209,344,316.78/13,648.50
  6. Step 6: Final answer
    x = 15,338.27

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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.