Home / 14,667.20-22,000.80-12,485.60

Finding the Fourth Proportional to 14,667.20, 22,000.80 and 12,485.60

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Solution

The fourth proportional to 14,667.20, 22,000.80 and 12,485.60 is: 18,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,667.20 : 22,000.80 = 12,485.60 : x
  2. Step 2: Convert to fraction form
    14,667.20/22,000.80 = 12,485.60/x
  3. Step 3: Cross multiply
    14,667.20x = 22,000.80 × 12,485.60
  4. Step 4: Simplify right side
    14,667.20x = 274,693,188.48
  5. Step 5: Solve for x
    x = 274,693,188.48/14,667.20
  6. Step 6: Final answer
    x = 18,728.40

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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.