Home / 13,943.86-20,918.34-4,584.40

Finding the Fourth Proportional to 13,943.86, 20,918.34 and 4,584.40

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Solution

The fourth proportional to 13,943.86, 20,918.34 and 4,584.40 is: 6,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.86 : 20,918.34 = 4,584.40 : x
  2. Step 2: Convert to fraction form
    13,943.86/20,918.34 = 4,584.40/x
  3. Step 3: Cross multiply
    13,943.86x = 20,918.34 × 4,584.40
  4. Step 4: Simplify right side
    13,943.86x = 95,898,037.90
  5. Step 5: Solve for x
    x = 95,898,037.90/13,943.86
  6. Step 6: Final answer
    x = 6,877.44

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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.