Home / 8,318.55-12,477.69-2,475.21

Finding the Fourth Proportional to 8,318.55, 12,477.69 and 2,475.21

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Solution

The fourth proportional to 8,318.55, 12,477.69 and 2,475.21 is: 3,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.55 : 12,477.69 = 2,475.21 : x
  2. Step 2: Convert to fraction form
    8,318.55/12,477.69 = 2,475.21/x
  3. Step 3: Cross multiply
    8,318.55x = 12,477.69 × 2,475.21
  4. Step 4: Simplify right side
    8,318.55x = 30,884,903.06
  5. Step 5: Solve for x
    x = 30,884,903.06/8,318.55
  6. Step 6: Final answer
    x = 3,712.77

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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.