Home / 14,186.53-19,575.97-8,220.12

Finding the Fourth Proportional to 14,186.53, 19,575.97 and 8,220.12

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Solution

The fourth proportional to 14,186.53, 19,575.97 and 8,220.12 is: 11,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.53 : 19,575.97 = 8,220.12 : x
  2. Step 2: Convert to fraction form
    14,186.53/19,575.97 = 8,220.12/x
  3. Step 3: Cross multiply
    14,186.53x = 19,575.97 × 8,220.12
  4. Step 4: Simplify right side
    14,186.53x = 160,916,822.52
  5. Step 5: Solve for x
    x = 160,916,822.52/14,186.53
  6. Step 6: Final answer
    x = 11,342.93

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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.