Home / 17,780.61-26,668.73-11,117.70

Finding the Fourth Proportional to 17,780.61, 26,668.73 and 11,117.70

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Solution

The fourth proportional to 17,780.61, 26,668.73 and 11,117.70 is: 16,675.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.61 : 26,668.73 = 11,117.70 : x
  2. Step 2: Convert to fraction form
    17,780.61/26,668.73 = 11,117.70/x
  3. Step 3: Cross multiply
    17,780.61x = 26,668.73 × 11,117.70
  4. Step 4: Simplify right side
    17,780.61x = 296,494,883.93
  5. Step 5: Solve for x
    x = 296,494,883.93/17,780.61
  6. Step 6: Final answer
    x = 16,675.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.