Home / 14,685.12-20,258.88-8,713.44

Finding the Fourth Proportional to 14,685.12, 20,258.88 and 8,713.44

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Solution

The fourth proportional to 14,685.12, 20,258.88 and 8,713.44 is: 12,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.12 : 20,258.88 = 8,713.44 : x
  2. Step 2: Convert to fraction form
    14,685.12/20,258.88 = 8,713.44/x
  3. Step 3: Cross multiply
    14,685.12x = 20,258.88 × 8,713.44
  4. Step 4: Simplify right side
    14,685.12x = 176,524,535.35
  5. Step 5: Solve for x
    x = 176,524,535.35/14,685.12
  6. Step 6: Final answer
    x = 12,020.64

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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.