Home / 7,109.96-9,813.88-4,126.52

Finding the Fourth Proportional to 7,109.96, 9,813.88 and 4,126.52

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Solution

The fourth proportional to 7,109.96, 9,813.88 and 4,126.52 is: 5,695.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.96 : 9,813.88 = 4,126.52 : x
  2. Step 2: Convert to fraction form
    7,109.96/9,813.88 = 4,126.52/x
  3. Step 3: Cross multiply
    7,109.96x = 9,813.88 × 4,126.52
  4. Step 4: Simplify right side
    7,109.96x = 40,497,172.10
  5. Step 5: Solve for x
    x = 40,497,172.10/7,109.96
  6. Step 6: Final answer
    x = 5,695.84

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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.