Home / 14,231.45-19,631.31-8,917.04

Finding the Fourth Proportional to 14,231.45, 19,631.31 and 8,917.04

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Solution

The fourth proportional to 14,231.45, 19,631.31 and 8,917.04 is: 12,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.45 : 19,631.31 = 8,917.04 : x
  2. Step 2: Convert to fraction form
    14,231.45/19,631.31 = 8,917.04/x
  3. Step 3: Cross multiply
    14,231.45x = 19,631.31 × 8,917.04
  4. Step 4: Simplify right side
    14,231.45x = 175,053,176.52
  5. Step 5: Solve for x
    x = 175,053,176.52/14,231.45
  6. Step 6: Final answer
    x = 12,300.45

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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.