Home / 8,475.96-12,715.56-3,210.16

Finding the Fourth Proportional to 8,475.96, 12,715.56 and 3,210.16

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Solution

The fourth proportional to 8,475.96, 12,715.56 and 3,210.16 is: 4,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.96 : 12,715.56 = 3,210.16 : x
  2. Step 2: Convert to fraction form
    8,475.96/12,715.56 = 3,210.16/x
  3. Step 3: Cross multiply
    8,475.96x = 12,715.56 × 3,210.16
  4. Step 4: Simplify right side
    8,475.96x = 40,818,982.09
  5. Step 5: Solve for x
    x = 40,818,982.09/8,475.96
  6. Step 6: Final answer
    x = 4,815.85

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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.