Home / 10,105.74-15,159.29-3,085.80

Finding the Fourth Proportional to 10,105.74, 15,159.29 and 3,085.80

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Solution

The fourth proportional to 10,105.74, 15,159.29 and 3,085.80 is: 4,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.74 : 15,159.29 = 3,085.80 : x
  2. Step 2: Convert to fraction form
    10,105.74/15,159.29 = 3,085.80/x
  3. Step 3: Cross multiply
    10,105.74x = 15,159.29 × 3,085.80
  4. Step 4: Simplify right side
    10,105.74x = 46,778,537.08
  5. Step 5: Solve for x
    x = 46,778,537.08/10,105.74
  6. Step 6: Final answer
    x = 4,628.91

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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.