Home / 9,427.20-13,009.68-5,235.12

Finding the Fourth Proportional to 9,427.20, 13,009.68 and 5,235.12

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Solution

The fourth proportional to 9,427.20, 13,009.68 and 5,235.12 is: 7,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.20 : 13,009.68 = 5,235.12 : x
  2. Step 2: Convert to fraction form
    9,427.20/13,009.68 = 5,235.12/x
  3. Step 3: Cross multiply
    9,427.20x = 13,009.68 × 5,235.12
  4. Step 4: Simplify right side
    9,427.20x = 68,107,235.96
  5. Step 5: Solve for x
    x = 68,107,235.96/9,427.20
  6. Step 6: Final answer
    x = 7,224.55

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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.