Home / 9,363.48-12,921.24-5,381.88

Finding the Fourth Proportional to 9,363.48, 12,921.24 and 5,381.88

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Solution

The fourth proportional to 9,363.48, 12,921.24 and 5,381.88 is: 7,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.48 : 12,921.24 = 5,381.88 : x
  2. Step 2: Convert to fraction form
    9,363.48/12,921.24 = 5,381.88/x
  3. Step 3: Cross multiply
    9,363.48x = 12,921.24 × 5,381.88
  4. Step 4: Simplify right side
    9,363.48x = 69,540,563.13
  5. Step 5: Solve for x
    x = 69,540,563.13/9,363.48
  6. Step 6: Final answer
    x = 7,426.79

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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.