Home / 14,939.76-20,617.36-8,225.88

Finding the Fourth Proportional to 14,939.76, 20,617.36 and 8,225.88

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Solution

The fourth proportional to 14,939.76, 20,617.36 and 8,225.88 is: 11,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.76 : 20,617.36 = 8,225.88 : x
  2. Step 2: Convert to fraction form
    14,939.76/20,617.36 = 8,225.88/x
  3. Step 3: Cross multiply
    14,939.76x = 20,617.36 × 8,225.88
  4. Step 4: Simplify right side
    14,939.76x = 169,595,929.28
  5. Step 5: Solve for x
    x = 169,595,929.28/14,939.76
  6. Step 6: Final answer
    x = 11,351.98

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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.