Home / 14,770.28-20,384.91-8,482.70

Finding the Fourth Proportional to 14,770.28, 20,384.91 and 8,482.70

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Solution

The fourth proportional to 14,770.28, 20,384.91 and 8,482.70 is: 11,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,770.28 : 20,384.91 = 8,482.70 : x
  2. Step 2: Convert to fraction form
    14,770.28/20,384.91 = 8,482.70/x
  3. Step 3: Cross multiply
    14,770.28x = 20,384.91 × 8,482.70
  4. Step 4: Simplify right side
    14,770.28x = 172,919,076.06
  5. Step 5: Solve for x
    x = 172,919,076.06/14,770.28
  6. Step 6: Final answer
    x = 11,707.23

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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.