Home / 8,148.13-12,228.35-5,647.91

Finding the Fourth Proportional to 8,148.13, 12,228.35 and 5,647.91

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Solution

The fourth proportional to 8,148.13, 12,228.35 and 5,647.91 is: 8,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.13 : 12,228.35 = 5,647.91 : x
  2. Step 2: Convert to fraction form
    8,148.13/12,228.35 = 5,647.91/x
  3. Step 3: Cross multiply
    8,148.13x = 12,228.35 × 5,647.91
  4. Step 4: Simplify right side
    8,148.13x = 69,064,530.87
  5. Step 5: Solve for x
    x = 69,064,530.87/8,148.13
  6. Step 6: Final answer
    x = 8,476.12

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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.