Home / 17,738.10-24,478.76-9,780.12

Finding the Fourth Proportional to 17,738.10, 24,478.76 and 9,780.12

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Solution

The fourth proportional to 17,738.10, 24,478.76 and 9,780.12 is: 13,496.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,738.10 : 24,478.76 = 9,780.12 : x
  2. Step 2: Convert to fraction form
    17,738.10/24,478.76 = 9,780.12/x
  3. Step 3: Cross multiply
    17,738.10x = 24,478.76 × 9,780.12
  4. Step 4: Simplify right side
    17,738.10x = 239,405,161.35
  5. Step 5: Solve for x
    x = 239,405,161.35/17,738.10
  6. Step 6: Final answer
    x = 13,496.66

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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.