Home / 10,085.96-15,130.38-3,161

Finding the Fourth Proportional to 10,085.96, 15,130.38 and 3,161

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Solution

The fourth proportional to 10,085.96, 15,130.38 and 3,161 is: 4,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.96 : 15,130.38 = 3,161 : x
  2. Step 2: Convert to fraction form
    10,085.96/15,130.38 = 3,161/x
  3. Step 3: Cross multiply
    10,085.96x = 15,130.38 × 3,161
  4. Step 4: Simplify right side
    10,085.96x = 47,827,131.18
  5. Step 5: Solve for x
    x = 47,827,131.18/10,085.96
  6. Step 6: Final answer
    x = 4,741.95

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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.