Home / 11,206.08-15,468.12-7,679.52

Finding the Fourth Proportional to 11,206.08, 15,468.12 and 7,679.52

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Solution

The fourth proportional to 11,206.08, 15,468.12 and 7,679.52 is: 10,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.08 : 15,468.12 = 7,679.52 : x
  2. Step 2: Convert to fraction form
    11,206.08/15,468.12 = 7,679.52/x
  3. Step 3: Cross multiply
    11,206.08x = 15,468.12 × 7,679.52
  4. Step 4: Simplify right side
    11,206.08x = 118,787,736.90
  5. Step 5: Solve for x
    x = 118,787,736.90/11,206.08
  6. Step 6: Final answer
    x = 10,600.29

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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.