Home / 7,109.52-9,813.09-4,126.32

Finding the Fourth Proportional to 7,109.52, 9,813.09 and 4,126.32

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Solution

The fourth proportional to 7,109.52, 9,813.09 and 4,126.32 is: 5,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.52 : 9,813.09 = 4,126.32 : x
  2. Step 2: Convert to fraction form
    7,109.52/9,813.09 = 4,126.32/x
  3. Step 3: Cross multiply
    7,109.52x = 9,813.09 × 4,126.32
  4. Step 4: Simplify right side
    7,109.52x = 40,491,949.53
  5. Step 5: Solve for x
    x = 40,491,949.53/7,109.52
  6. Step 6: Final answer
    x = 5,695.45

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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.