Home / 11,780.07-17,678.19-4,854.57

Finding the Fourth Proportional to 11,780.07, 17,678.19 and 4,854.57

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Solution

The fourth proportional to 11,780.07, 17,678.19 and 4,854.57 is: 7,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.07 : 17,678.19 = 4,854.57 : x
  2. Step 2: Convert to fraction form
    11,780.07/17,678.19 = 4,854.57/x
  3. Step 3: Cross multiply
    11,780.07x = 17,678.19 × 4,854.57
  4. Step 4: Simplify right side
    11,780.07x = 85,820,010.83
  5. Step 5: Solve for x
    x = 85,820,010.83/11,780.07
  6. Step 6: Final answer
    x = 7,285.19

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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.