Home / 7,111.05-9,814.14-4,126.25

Finding the Fourth Proportional to 7,111.05, 9,814.14 and 4,126.25

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Solution

The fourth proportional to 7,111.05, 9,814.14 and 4,126.25 is: 5,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.05 : 9,814.14 = 4,126.25 : x
  2. Step 2: Convert to fraction form
    7,111.05/9,814.14 = 4,126.25/x
  3. Step 3: Cross multiply
    7,111.05x = 9,814.14 × 4,126.25
  4. Step 4: Simplify right side
    7,111.05x = 40,495,546.10
  5. Step 5: Solve for x
    x = 40,495,546.10/7,111.05
  6. Step 6: Final answer
    x = 5,694.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.