Home / 9,827.40-13,563.06-5,635.56

Finding the Fourth Proportional to 9,827.40, 13,563.06 and 5,635.56

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Solution

The fourth proportional to 9,827.40, 13,563.06 and 5,635.56 is: 7,777.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,827.40 : 13,563.06 = 5,635.56 : x
  2. Step 2: Convert to fraction form
    9,827.40/13,563.06 = 5,635.56/x
  3. Step 3: Cross multiply
    9,827.40x = 13,563.06 × 5,635.56
  4. Step 4: Simplify right side
    9,827.40x = 76,435,438.41
  5. Step 5: Solve for x
    x = 76,435,438.41/9,827.40
  6. Step 6: Final answer
    x = 7,777.79

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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.