Home / 11,274.24-15,557.40-6,558.78

Finding the Fourth Proportional to 11,274.24, 15,557.40 and 6,558.78

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Solution

The fourth proportional to 11,274.24, 15,557.40 and 6,558.78 is: 9,050.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.24 : 15,557.40 = 6,558.78 : x
  2. Step 2: Convert to fraction form
    11,274.24/15,557.40 = 6,558.78/x
  3. Step 3: Cross multiply
    11,274.24x = 15,557.40 × 6,558.78
  4. Step 4: Simplify right side
    11,274.24x = 102,037,563.97
  5. Step 5: Solve for x
    x = 102,037,563.97/11,274.24
  6. Step 6: Final answer
    x = 9,050.50

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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.