Home / 8,345.42-12,524.97-3,415.11

Finding the Fourth Proportional to 8,345.42, 12,524.97 and 3,415.11

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Solution

The fourth proportional to 8,345.42, 12,524.97 and 3,415.11 is: 5,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.42 : 12,524.97 = 3,415.11 : x
  2. Step 2: Convert to fraction form
    8,345.42/12,524.97 = 3,415.11/x
  3. Step 3: Cross multiply
    8,345.42x = 12,524.97 × 3,415.11
  4. Step 4: Simplify right side
    8,345.42x = 42,774,096.21
  5. Step 5: Solve for x
    x = 42,774,096.21/8,345.42
  6. Step 6: Final answer
    x = 5,125.46

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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.