Home / 13,805.72-19,030.38-11,563.64

Finding the Fourth Proportional to 13,805.72, 19,030.38 and 11,563.64

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Solution

The fourth proportional to 13,805.72, 19,030.38 and 11,563.64 is: 15,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.72 : 19,030.38 = 11,563.64 : x
  2. Step 2: Convert to fraction form
    13,805.72/19,030.38 = 11,563.64/x
  3. Step 3: Cross multiply
    13,805.72x = 19,030.38 × 11,563.64
  4. Step 4: Simplify right side
    13,805.72x = 220,060,463.38
  5. Step 5: Solve for x
    x = 220,060,463.38/13,805.72
  6. Step 6: Final answer
    x = 15,939.80

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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.