Home / 14,205.50-19,603.68-7,917.92

Finding the Fourth Proportional to 14,205.50, 19,603.68 and 7,917.92

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Solution

The fourth proportional to 14,205.50, 19,603.68 and 7,917.92 is: 10,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.50 : 19,603.68 = 7,917.92 : x
  2. Step 2: Convert to fraction form
    14,205.50/19,603.68 = 7,917.92/x
  3. Step 3: Cross multiply
    14,205.50x = 19,603.68 × 7,917.92
  4. Step 4: Simplify right side
    14,205.50x = 155,220,369.95
  5. Step 5: Solve for x
    x = 155,220,369.95/14,205.50
  6. Step 6: Final answer
    x = 10,926.78

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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.