Home / 13,340.79-20,023.23-7,106.01

Finding the Fourth Proportional to 13,340.79, 20,023.23 and 7,106.01

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Solution

The fourth proportional to 13,340.79, 20,023.23 and 7,106.01 is: 10,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.79 : 20,023.23 = 7,106.01 : x
  2. Step 2: Convert to fraction form
    13,340.79/20,023.23 = 7,106.01/x
  3. Step 3: Cross multiply
    13,340.79x = 20,023.23 × 7,106.01
  4. Step 4: Simplify right side
    13,340.79x = 142,285,272.61
  5. Step 5: Solve for x
    x = 142,285,272.61/13,340.79
  6. Step 6: Final answer
    x = 10,665.43

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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.