Home / 14,679.94-20,258.32-8,392.45

Finding the Fourth Proportional to 14,679.94, 20,258.32 and 8,392.45

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Solution

The fourth proportional to 14,679.94, 20,258.32 and 8,392.45 is: 11,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.94 : 20,258.32 = 8,392.45 : x
  2. Step 2: Convert to fraction form
    14,679.94/20,258.32 = 8,392.45/x
  3. Step 3: Cross multiply
    14,679.94x = 20,258.32 × 8,392.45
  4. Step 4: Simplify right side
    14,679.94x = 170,016,937.68
  5. Step 5: Solve for x
    x = 170,016,937.68/14,679.94
  6. Step 6: Final answer
    x = 11,581.58

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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.