Home / 19,836.72-27,374.52-11,457.84

Finding the Fourth Proportional to 19,836.72, 27,374.52 and 11,457.84

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Solution

The fourth proportional to 19,836.72, 27,374.52 and 11,457.84 is: 15,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,836.72 : 27,374.52 = 11,457.84 : x
  2. Step 2: Convert to fraction form
    19,836.72/27,374.52 = 11,457.84/x
  3. Step 3: Cross multiply
    19,836.72x = 27,374.52 × 11,457.84
  4. Step 4: Simplify right side
    19,836.72x = 313,652,870.24
  5. Step 5: Solve for x
    x = 313,652,870.24/19,836.72
  6. Step 6: Final answer
    x = 15,811.73

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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.