Home / 14,005.44-19,342.80-13,137.12

Finding the Fourth Proportional to 14,005.44, 19,342.80 and 13,137.12

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Solution

The fourth proportional to 14,005.44, 19,342.80 and 13,137.12 is: 18,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.44 : 19,342.80 = 13,137.12 : x
  2. Step 2: Convert to fraction form
    14,005.44/19,342.80 = 13,137.12/x
  3. Step 3: Cross multiply
    14,005.44x = 19,342.80 × 13,137.12
  4. Step 4: Simplify right side
    14,005.44x = 254,108,684.74
  5. Step 5: Solve for x
    x = 254,108,684.74/14,005.44
  6. Step 6: Final answer
    x = 18,143.57

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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.