Home / 17,975.84-24,789.98-12,318.80

Finding the Fourth Proportional to 17,975.84, 24,789.98 and 12,318.80

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Solution

The fourth proportional to 17,975.84, 24,789.98 and 12,318.80 is: 16,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,975.84 : 24,789.98 = 12,318.80 : x
  2. Step 2: Convert to fraction form
    17,975.84/24,789.98 = 12,318.80/x
  3. Step 3: Cross multiply
    17,975.84x = 24,789.98 × 12,318.80
  4. Step 4: Simplify right side
    17,975.84x = 305,382,712.47
  5. Step 5: Solve for x
    x = 305,382,712.47/17,975.84
  6. Step 6: Final answer
    x = 16,988.51

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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.