Home / 19,650.76-27,120.40-11,586.24

Finding the Fourth Proportional to 19,650.76, 27,120.40 and 11,586.24

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Solution

The fourth proportional to 19,650.76, 27,120.40 and 11,586.24 is: 15,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.76 : 27,120.40 = 11,586.24 : x
  2. Step 2: Convert to fraction form
    19,650.76/27,120.40 = 11,586.24/x
  3. Step 3: Cross multiply
    19,650.76x = 27,120.40 × 11,586.24
  4. Step 4: Simplify right side
    19,650.76x = 314,223,463.30
  5. Step 5: Solve for x
    x = 314,223,463.30/19,650.76
  6. Step 6: Final answer
    x = 15,990.40

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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.