Home / 14,511.20-21,766.80-7,116.80

Finding the Fourth Proportional to 14,511.20, 21,766.80 and 7,116.80

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Solution

The fourth proportional to 14,511.20, 21,766.80 and 7,116.80 is: 10,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.20 : 21,766.80 = 7,116.80 : x
  2. Step 2: Convert to fraction form
    14,511.20/21,766.80 = 7,116.80/x
  3. Step 3: Cross multiply
    14,511.20x = 21,766.80 × 7,116.80
  4. Step 4: Simplify right side
    14,511.20x = 154,909,962.24
  5. Step 5: Solve for x
    x = 154,909,962.24/14,511.20
  6. Step 6: Final answer
    x = 10,675.20

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1.5x scale

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.