Home / 14,115.87-19,479.51-8,147.34

Finding the Fourth Proportional to 14,115.87, 19,479.51 and 8,147.34

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Solution

The fourth proportional to 14,115.87, 19,479.51 and 8,147.34 is: 11,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.87 : 19,479.51 = 8,147.34 : x
  2. Step 2: Convert to fraction form
    14,115.87/19,479.51 = 8,147.34/x
  3. Step 3: Cross multiply
    14,115.87x = 19,479.51 × 8,147.34
  4. Step 4: Simplify right side
    14,115.87x = 158,706,191.00
  5. Step 5: Solve for x
    x = 158,706,191.00/14,115.87
  6. Step 6: Final answer
    x = 11,243.10

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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.