Home / 8,618.40-12,927.63-3,424.26

Finding the Fourth Proportional to 8,618.40, 12,927.63 and 3,424.26

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Solution

The fourth proportional to 8,618.40, 12,927.63 and 3,424.26 is: 5,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.40 : 12,927.63 = 3,424.26 : x
  2. Step 2: Convert to fraction form
    8,618.40/12,927.63 = 3,424.26/x
  3. Step 3: Cross multiply
    8,618.40x = 12,927.63 × 3,424.26
  4. Step 4: Simplify right side
    8,618.40x = 44,267,566.30
  5. Step 5: Solve for x
    x = 44,267,566.30/8,618.40
  6. Step 6: Final answer
    x = 5,136.40

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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.