Home / 11,180.56-15,429.72-6,465.28

Finding the Fourth Proportional to 11,180.56, 15,429.72 and 6,465.28

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Solution

The fourth proportional to 11,180.56, 15,429.72 and 6,465.28 is: 8,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.56 : 15,429.72 = 6,465.28 : x
  2. Step 2: Convert to fraction form
    11,180.56/15,429.72 = 6,465.28/x
  3. Step 3: Cross multiply
    11,180.56x = 15,429.72 × 6,465.28
  4. Step 4: Simplify right side
    11,180.56x = 99,757,460.12
  5. Step 5: Solve for x
    x = 99,757,460.12/11,180.56
  6. Step 6: Final answer
    x = 8,922.40

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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.