Home / 13,062.72-18,027.36-7,474.56

Finding the Fourth Proportional to 13,062.72, 18,027.36 and 7,474.56

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Solution

The fourth proportional to 13,062.72, 18,027.36 and 7,474.56 is: 10,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.72 : 18,027.36 = 7,474.56 : x
  2. Step 2: Convert to fraction form
    13,062.72/18,027.36 = 7,474.56/x
  3. Step 3: Cross multiply
    13,062.72x = 18,027.36 × 7,474.56
  4. Step 4: Simplify right side
    13,062.72x = 134,746,583.96
  5. Step 5: Solve for x
    x = 134,746,583.96/13,062.72
  6. Step 6: Final answer
    x = 10,315.35

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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.