Home / 14,243.86-19,645.32-13,288.94

Finding the Fourth Proportional to 14,243.86, 19,645.32 and 13,288.94

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Solution

The fourth proportional to 14,243.86, 19,645.32 and 13,288.94 is: 18,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.86 : 19,645.32 = 13,288.94 : x
  2. Step 2: Convert to fraction form
    14,243.86/19,645.32 = 13,288.94/x
  3. Step 3: Cross multiply
    14,243.86x = 19,645.32 × 13,288.94
  4. Step 4: Simplify right side
    14,243.86x = 261,065,478.76
  5. Step 5: Solve for x
    x = 261,065,478.76/14,243.86
  6. Step 6: Final answer
    x = 18,328.28

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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.