Home / 10,742.40-16,111.74-2,949.39

Finding the Fourth Proportional to 10,742.40, 16,111.74 and 2,949.39

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Solution

The fourth proportional to 10,742.40, 16,111.74 and 2,949.39 is: 4,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.40 : 16,111.74 = 2,949.39 : x
  2. Step 2: Convert to fraction form
    10,742.40/16,111.74 = 2,949.39/x
  3. Step 3: Cross multiply
    10,742.40x = 16,111.74 × 2,949.39
  4. Step 4: Simplify right side
    10,742.40x = 47,519,804.84
  5. Step 5: Solve for x
    x = 47,519,804.84/10,742.40
  6. Step 6: Final answer
    x = 4,423.57

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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.