Home / 8,154.81-12,240.41-5,513.99

Finding the Fourth Proportional to 8,154.81, 12,240.41 and 5,513.99

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Solution

The fourth proportional to 8,154.81, 12,240.41 and 5,513.99 is: 8,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.81 : 12,240.41 = 5,513.99 : x
  2. Step 2: Convert to fraction form
    8,154.81/12,240.41 = 5,513.99/x
  3. Step 3: Cross multiply
    8,154.81x = 12,240.41 × 5,513.99
  4. Step 4: Simplify right side
    8,154.81x = 67,493,409.56
  5. Step 5: Solve for x
    x = 67,493,409.56/8,154.81
  6. Step 6: Final answer
    x = 8,276.52

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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.