Home / 14,118.48-21,175.20-8,269.20

Finding the Fourth Proportional to 14,118.48, 21,175.20 and 8,269.20

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Solution

The fourth proportional to 14,118.48, 21,175.20 and 8,269.20 is: 12,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.48 : 21,175.20 = 8,269.20 : x
  2. Step 2: Convert to fraction form
    14,118.48/21,175.20 = 8,269.20/x
  3. Step 3: Cross multiply
    14,118.48x = 21,175.20 × 8,269.20
  4. Step 4: Simplify right side
    14,118.48x = 175,101,963.84
  5. Step 5: Solve for x
    x = 175,101,963.84/14,118.48
  6. Step 6: Final answer
    x = 12,402.32

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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.