Home / 14,540.16-21,789.12-8,995.20

Finding the Fourth Proportional to 14,540.16, 21,789.12 and 8,995.20

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Solution

The fourth proportional to 14,540.16, 21,789.12 and 8,995.20 is: 13,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,540.16 : 21,789.12 = 8,995.20 : x
  2. Step 2: Convert to fraction form
    14,540.16/21,789.12 = 8,995.20/x
  3. Step 3: Cross multiply
    14,540.16x = 21,789.12 × 8,995.20
  4. Step 4: Simplify right side
    14,540.16x = 195,997,492.22
  5. Step 5: Solve for x
    x = 195,997,492.22/14,540.16
  6. Step 6: Final answer
    x = 13,479.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.