Home / 13,131.72-18,103.50-10,332.36

Finding the Fourth Proportional to 13,131.72, 18,103.50 and 10,332.36

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Solution

The fourth proportional to 13,131.72, 18,103.50 and 10,332.36 is: 14,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.72 : 18,103.50 = 10,332.36 : x
  2. Step 2: Convert to fraction form
    13,131.72/18,103.50 = 10,332.36/x
  3. Step 3: Cross multiply
    13,131.72x = 18,103.50 × 10,332.36
  4. Step 4: Simplify right side
    13,131.72x = 187,051,879.26
  5. Step 5: Solve for x
    x = 187,051,879.26/13,131.72
  6. Step 6: Final answer
    x = 14,244.28

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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.