Home / 19,586.96-27,012.08-12,869.92

Finding the Fourth Proportional to 19,586.96, 27,012.08 and 12,869.92

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Solution

The fourth proportional to 19,586.96, 27,012.08 and 12,869.92 is: 17,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.96 : 27,012.08 = 12,869.92 : x
  2. Step 2: Convert to fraction form
    19,586.96/27,012.08 = 12,869.92/x
  3. Step 3: Cross multiply
    19,586.96x = 27,012.08 × 12,869.92
  4. Step 4: Simplify right side
    19,586.96x = 347,643,308.63
  5. Step 5: Solve for x
    x = 347,643,308.63/19,586.96
  6. Step 6: Final answer
    x = 17,748.71

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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.