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Finding the Fourth Proportional to 14,666.80, 22,000.20 and 6,890.80

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Solution

The fourth proportional to 14,666.80, 22,000.20 and 6,890.80 is: 10,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.80 : 22,000.20 = 6,890.80 : x
  2. Step 2: Convert to fraction form
    14,666.80/22,000.20 = 6,890.80/x
  3. Step 3: Cross multiply
    14,666.80x = 22,000.20 × 6,890.80
  4. Step 4: Simplify right side
    14,666.80x = 151,598,978.16
  5. Step 5: Solve for x
    x = 151,598,978.16/14,666.80
  6. Step 6: Final answer
    x = 10,336.20

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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.