Home / 13,244.56-18,276.78-7,579.42

Finding the Fourth Proportional to 13,244.56, 18,276.78 and 7,579.42

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Solution

The fourth proportional to 13,244.56, 18,276.78 and 7,579.42 is: 10,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.56 : 18,276.78 = 7,579.42 : x
  2. Step 2: Convert to fraction form
    13,244.56/18,276.78 = 7,579.42/x
  3. Step 3: Cross multiply
    13,244.56x = 18,276.78 × 7,579.42
  4. Step 4: Simplify right side
    13,244.56x = 138,527,391.87
  5. Step 5: Solve for x
    x = 138,527,391.87/13,244.56
  6. Step 6: Final answer
    x = 10,459.19

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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.