Home / 14,658.40-21,976.80-6,331.60

Finding the Fourth Proportional to 14,658.40, 21,976.80 and 6,331.60

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Solution

The fourth proportional to 14,658.40, 21,976.80 and 6,331.60 is: 9,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.40 : 21,976.80 = 6,331.60 : x
  2. Step 2: Convert to fraction form
    14,658.40/21,976.80 = 6,331.60/x
  3. Step 3: Cross multiply
    14,658.40x = 21,976.80 × 6,331.60
  4. Step 4: Simplify right side
    14,658.40x = 139,148,306.88
  5. Step 5: Solve for x
    x = 139,148,306.88/14,658.40
  6. Step 6: Final answer
    x = 9,492.74

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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.