Home / 14,131.70-21,169.28-8,506.28

Finding the Fourth Proportional to 14,131.70, 21,169.28 and 8,506.28

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Solution

The fourth proportional to 14,131.70, 21,169.28 and 8,506.28 is: 12,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.70 : 21,169.28 = 8,506.28 : x
  2. Step 2: Convert to fraction form
    14,131.70/21,169.28 = 8,506.28/x
  3. Step 3: Cross multiply
    14,131.70x = 21,169.28 × 8,506.28
  4. Step 4: Simplify right side
    14,131.70x = 180,071,897.27
  5. Step 5: Solve for x
    x = 180,071,897.27/14,131.70
  6. Step 6: Final answer
    x = 12,742.41

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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.