Home / 14,148.19-19,524.43-7,687.78

Finding the Fourth Proportional to 14,148.19, 19,524.43 and 7,687.78

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Solution

The fourth proportional to 14,148.19, 19,524.43 and 7,687.78 is: 10,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.19 : 19,524.43 = 7,687.78 : x
  2. Step 2: Convert to fraction form
    14,148.19/19,524.43 = 7,687.78/x
  3. Step 3: Cross multiply
    14,148.19x = 19,524.43 × 7,687.78
  4. Step 4: Simplify right side
    14,148.19x = 150,099,522.47
  5. Step 5: Solve for x
    x = 150,099,522.47/14,148.19
  6. Step 6: Final answer
    x = 10,609.10

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Double scale
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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.