Home / 14,552.40-21,779.52-12,190.80

Finding the Fourth Proportional to 14,552.40, 21,779.52 and 12,190.80

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Solution

The fourth proportional to 14,552.40, 21,779.52 and 12,190.80 is: 18,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,552.40 : 21,779.52 = 12,190.80 : x
  2. Step 2: Convert to fraction form
    14,552.40/21,779.52 = 12,190.80/x
  3. Step 3: Cross multiply
    14,552.40x = 21,779.52 × 12,190.80
  4. Step 4: Simplify right side
    14,552.40x = 265,509,772.42
  5. Step 5: Solve for x
    x = 265,509,772.42/14,552.40
  6. Step 6: Final answer
    x = 18,245.08

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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.