Home / 17,738.85-24,479.79-9,780.87

Finding the Fourth Proportional to 17,738.85, 24,479.79 and 9,780.87

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Solution

The fourth proportional to 17,738.85, 24,479.79 and 9,780.87 is: 13,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,738.85 : 24,479.79 = 9,780.87 : x
  2. Step 2: Convert to fraction form
    17,738.85/24,479.79 = 9,780.87/x
  3. Step 3: Cross multiply
    17,738.85x = 24,479.79 × 9,780.87
  4. Step 4: Simplify right side
    17,738.85x = 239,433,643.62
  5. Step 5: Solve for x
    x = 239,433,643.62/17,738.85
  6. Step 6: Final answer
    x = 13,497.70

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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.