Home / 15,793.86-21,817.95-12,628.17

Finding the Fourth Proportional to 15,793.86, 21,817.95 and 12,628.17

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Solution

The fourth proportional to 15,793.86, 21,817.95 and 12,628.17 is: 17,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.86 : 21,817.95 = 12,628.17 : x
  2. Step 2: Convert to fraction form
    15,793.86/21,817.95 = 12,628.17/x
  3. Step 3: Cross multiply
    15,793.86x = 21,817.95 × 12,628.17
  4. Step 4: Simplify right side
    15,793.86x = 275,520,781.65
  5. Step 5: Solve for x
    x = 275,520,781.65/15,793.86
  6. Step 6: Final answer
    x = 17,444.80

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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.