Home / 14,942.80-22,414.20-9,985.60

Finding the Fourth Proportional to 14,942.80, 22,414.20 and 9,985.60

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Solution

The fourth proportional to 14,942.80, 22,414.20 and 9,985.60 is: 14,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.80 : 22,414.20 = 9,985.60 : x
  2. Step 2: Convert to fraction form
    14,942.80/22,414.20 = 9,985.60/x
  3. Step 3: Cross multiply
    14,942.80x = 22,414.20 × 9,985.60
  4. Step 4: Simplify right side
    14,942.80x = 223,819,235.52
  5. Step 5: Solve for x
    x = 223,819,235.52/14,942.80
  6. Step 6: Final answer
    x = 14,978.40

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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.