Home / 19,909.28-27,474.80-11,525.60

Finding the Fourth Proportional to 19,909.28, 27,474.80 and 11,525.60

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Solution

The fourth proportional to 19,909.28, 27,474.80 and 11,525.60 is: 15,905.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.28 : 27,474.80 = 11,525.60 : x
  2. Step 2: Convert to fraction form
    19,909.28/27,474.80 = 11,525.60/x
  3. Step 3: Cross multiply
    19,909.28x = 27,474.80 × 11,525.60
  4. Step 4: Simplify right side
    19,909.28x = 316,663,554.88
  5. Step 5: Solve for x
    x = 316,663,554.88/19,909.28
  6. Step 6: Final answer
    x = 15,905.32

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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.