Home / 10,528.14-15,786.20-8,451.98

Finding the Fourth Proportional to 10,528.14, 15,786.20 and 8,451.98

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Solution

The fourth proportional to 10,528.14, 15,786.20 and 8,451.98 is: 12,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.14 : 15,786.20 = 8,451.98 : x
  2. Step 2: Convert to fraction form
    10,528.14/15,786.20 = 8,451.98/x
  3. Step 3: Cross multiply
    10,528.14x = 15,786.20 × 8,451.98
  4. Step 4: Simplify right side
    10,528.14x = 133,424,648.07
  5. Step 5: Solve for x
    x = 133,424,648.07/10,528.14
  6. Step 6: Final answer
    x = 12,673.14

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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.