Home / 14,680.13-20,258.60-8,392.64

Finding the Fourth Proportional to 14,680.13, 20,258.60 and 8,392.64

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Solution

The fourth proportional to 14,680.13, 20,258.60 and 8,392.64 is: 11,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680.13 : 20,258.60 = 8,392.64 : x
  2. Step 2: Convert to fraction form
    14,680.13/20,258.60 = 8,392.64/x
  3. Step 3: Cross multiply
    14,680.13x = 20,258.60 × 8,392.64
  4. Step 4: Simplify right side
    14,680.13x = 170,022,993.45
  5. Step 5: Solve for x
    x = 170,022,993.45/14,680.13
  6. Step 6: Final answer
    x = 11,581.85

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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.