Home / 14,115.66-19,478.58-8,147.58

Finding the Fourth Proportional to 14,115.66, 19,478.58 and 8,147.58

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Solution

The fourth proportional to 14,115.66, 19,478.58 and 8,147.58 is: 11,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.66 : 19,478.58 = 8,147.58 : x
  2. Step 2: Convert to fraction form
    14,115.66/19,478.58 = 8,147.58/x
  3. Step 3: Cross multiply
    14,115.66x = 19,478.58 × 8,147.58
  4. Step 4: Simplify right side
    14,115.66x = 158,703,288.84
  5. Step 5: Solve for x
    x = 158,703,288.84/14,115.66
  6. Step 6: Final answer
    x = 11,243.07

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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.