Home / 14,435.75-19,921.65-8,148.17

Finding the Fourth Proportional to 14,435.75, 19,921.65 and 8,148.17

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Solution

The fourth proportional to 14,435.75, 19,921.65 and 8,148.17 is: 11,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.75 : 19,921.65 = 8,148.17 : x
  2. Step 2: Convert to fraction form
    14,435.75/19,921.65 = 8,148.17/x
  3. Step 3: Cross multiply
    14,435.75x = 19,921.65 × 8,148.17
  4. Step 4: Simplify right side
    14,435.75x = 162,324,990.88
  5. Step 5: Solve for x
    x = 162,324,990.88/14,435.75
  6. Step 6: Final answer
    x = 11,244.65

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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.