Home / 14,520.80-21,783.60-13,051.44

Finding the Fourth Proportional to 14,520.80, 21,783.60 and 13,051.44

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Solution

The fourth proportional to 14,520.80, 21,783.60 and 13,051.44 is: 19,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.80 : 21,783.60 = 13,051.44 : x
  2. Step 2: Convert to fraction form
    14,520.80/21,783.60 = 13,051.44/x
  3. Step 3: Cross multiply
    14,520.80x = 21,783.60 × 13,051.44
  4. Step 4: Simplify right side
    14,520.80x = 284,307,348.38
  5. Step 5: Solve for x
    x = 284,307,348.38/14,520.80
  6. Step 6: Final answer
    x = 19,579.32

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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.