Home / 15,789.63-23,679.78-13,009.41

Finding the Fourth Proportional to 15,789.63, 23,679.78 and 13,009.41

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Solution

The fourth proportional to 15,789.63, 23,679.78 and 13,009.41 is: 19,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.63 : 23,679.78 = 13,009.41 : x
  2. Step 2: Convert to fraction form
    15,789.63/23,679.78 = 13,009.41/x
  3. Step 3: Cross multiply
    15,789.63x = 23,679.78 × 13,009.41
  4. Step 4: Simplify right side
    15,789.63x = 308,059,917.94
  5. Step 5: Solve for x
    x = 308,059,917.94/15,789.63
  6. Step 6: Final answer
    x = 19,510.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.