Home / 14,391.20-21,586.80-8,544.80

Finding the Fourth Proportional to 14,391.20, 21,586.80 and 8,544.80

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Solution

The fourth proportional to 14,391.20, 21,586.80 and 8,544.80 is: 12,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.20 : 21,586.80 = 8,544.80 : x
  2. Step 2: Convert to fraction form
    14,391.20/21,586.80 = 8,544.80/x
  3. Step 3: Cross multiply
    14,391.20x = 21,586.80 × 8,544.80
  4. Step 4: Simplify right side
    14,391.20x = 184,454,888.64
  5. Step 5: Solve for x
    x = 184,454,888.64/14,391.20
  6. Step 6: Final answer
    x = 12,817.20

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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.