Home / 9,005.28-12,427.18-5,228.44

Finding the Fourth Proportional to 9,005.28, 12,427.18 and 5,228.44

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Solution

The fourth proportional to 9,005.28, 12,427.18 and 5,228.44 is: 7,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.28 : 12,427.18 = 5,228.44 : x
  2. Step 2: Convert to fraction form
    9,005.28/12,427.18 = 5,228.44/x
  3. Step 3: Cross multiply
    9,005.28x = 12,427.18 × 5,228.44
  4. Step 4: Simplify right side
    9,005.28x = 64,974,765.00
  5. Step 5: Solve for x
    x = 64,974,765.00/9,005.28
  6. Step 6: Final answer
    x = 7,215.19

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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.