Home / 10,087.13-15,130.70-3,161.63

Finding the Fourth Proportional to 10,087.13, 15,130.70 and 3,161.63

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Solution

The fourth proportional to 10,087.13, 15,130.70 and 3,161.63 is: 4,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.13 : 15,130.70 = 3,161.63 : x
  2. Step 2: Convert to fraction form
    10,087.13/15,130.70 = 3,161.63/x
  3. Step 3: Cross multiply
    10,087.13x = 15,130.70 × 3,161.63
  4. Step 4: Simplify right side
    10,087.13x = 47,837,583.58
  5. Step 5: Solve for x
    x = 47,837,583.58/10,087.13
  6. Step 6: Final answer
    x = 4,742.44

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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.