Home / 13,228.91-18,256.74-8,744.80

Finding the Fourth Proportional to 13,228.91, 18,256.74 and 8,744.80

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Solution

The fourth proportional to 13,228.91, 18,256.74 and 8,744.80 is: 12,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.91 : 18,256.74 = 8,744.80 : x
  2. Step 2: Convert to fraction form
    13,228.91/18,256.74 = 8,744.80/x
  3. Step 3: Cross multiply
    13,228.91x = 18,256.74 × 8,744.80
  4. Step 4: Simplify right side
    13,228.91x = 159,651,404.94
  5. Step 5: Solve for x
    x = 159,651,404.94/13,228.91
  6. Step 6: Final answer
    x = 12,068.37

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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.