Home / 14,813.48-20,450.40-11,782.64

Finding the Fourth Proportional to 14,813.48, 20,450.40 and 11,782.64

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Solution

The fourth proportional to 14,813.48, 20,450.40 and 11,782.64 is: 16,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,813.48 : 20,450.40 = 11,782.64 : x
  2. Step 2: Convert to fraction form
    14,813.48/20,450.40 = 11,782.64/x
  3. Step 3: Cross multiply
    14,813.48x = 20,450.40 × 11,782.64
  4. Step 4: Simplify right side
    14,813.48x = 240,959,701.06
  5. Step 5: Solve for x
    x = 240,959,701.06/14,813.48
  6. Step 6: Final answer
    x = 16,266.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.