Home / 11,178.64-15,420.72-6,700.24

Finding the Fourth Proportional to 11,178.64, 15,420.72 and 6,700.24

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Solution

The fourth proportional to 11,178.64, 15,420.72 and 6,700.24 is: 9,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.64 : 15,420.72 = 6,700.24 : x
  2. Step 2: Convert to fraction form
    11,178.64/15,420.72 = 6,700.24/x
  3. Step 3: Cross multiply
    11,178.64x = 15,420.72 × 6,700.24
  4. Step 4: Simplify right side
    11,178.64x = 103,322,524.97
  5. Step 5: Solve for x
    x = 103,322,524.97/11,178.64
  6. Step 6: Final answer
    x = 9,242.85

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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.