Home / 15,004.60-20,704.56-8,289.82

Finding the Fourth Proportional to 15,004.60, 20,704.56 and 8,289.82

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Solution

The fourth proportional to 15,004.60, 20,704.56 and 8,289.82 is: 11,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.60 : 20,704.56 = 8,289.82 : x
  2. Step 2: Convert to fraction form
    15,004.60/20,704.56 = 8,289.82/x
  3. Step 3: Cross multiply
    15,004.60x = 20,704.56 × 8,289.82
  4. Step 4: Simplify right side
    15,004.60x = 171,637,075.58
  5. Step 5: Solve for x
    x = 171,637,075.58/15,004.60
  6. Step 6: Final answer
    x = 11,438.96

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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.