Home / 11,022.51-15,211.32-6,775.86

Finding the Fourth Proportional to 11,022.51, 15,211.32 and 6,775.86

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Solution

The fourth proportional to 11,022.51, 15,211.32 and 6,775.86 is: 9,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.51 : 15,211.32 = 6,775.86 : x
  2. Step 2: Convert to fraction form
    11,022.51/15,211.32 = 6,775.86/x
  3. Step 3: Cross multiply
    11,022.51x = 15,211.32 × 6,775.86
  4. Step 4: Simplify right side
    11,022.51x = 103,069,774.74
  5. Step 5: Solve for x
    x = 103,069,774.74/11,022.51
  6. Step 6: Final answer
    x = 9,350.84

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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.