Home / 8,318.60-12,477.90-4,152.38

Finding the Fourth Proportional to 8,318.60, 12,477.90 and 4,152.38

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Solution

The fourth proportional to 8,318.60, 12,477.90 and 4,152.38 is: 6,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.60 : 12,477.90 = 4,152.38 : x
  2. Step 2: Convert to fraction form
    8,318.60/12,477.90 = 4,152.38/x
  3. Step 3: Cross multiply
    8,318.60x = 12,477.90 × 4,152.38
  4. Step 4: Simplify right side
    8,318.60x = 51,812,982.40
  5. Step 5: Solve for x
    x = 51,812,982.40/8,318.60
  6. Step 6: Final answer
    x = 6,228.57

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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.