Home / 13,258.42-18,288.99-7,950.15

Finding the Fourth Proportional to 13,258.42, 18,288.99 and 7,950.15

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Solution

The fourth proportional to 13,258.42, 18,288.99 and 7,950.15 is: 10,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.42 : 18,288.99 = 7,950.15 : x
  2. Step 2: Convert to fraction form
    13,258.42/18,288.99 = 7,950.15/x
  3. Step 3: Cross multiply
    13,258.42x = 18,288.99 × 7,950.15
  4. Step 4: Simplify right side
    13,258.42x = 145,400,213.85
  5. Step 5: Solve for x
    x = 145,400,213.85/13,258.42
  6. Step 6: Final answer
    x = 10,966.63

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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.