Home / 13,659.92-20,503.23-7,001.72

Finding the Fourth Proportional to 13,659.92, 20,503.23 and 7,001.72

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Solution

The fourth proportional to 13,659.92, 20,503.23 and 7,001.72 is: 10,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.92 : 20,503.23 = 7,001.72 : x
  2. Step 2: Convert to fraction form
    13,659.92/20,503.23 = 7,001.72/x
  3. Step 3: Cross multiply
    13,659.92x = 20,503.23 × 7,001.72
  4. Step 4: Simplify right side
    13,659.92x = 143,557,875.56
  5. Step 5: Solve for x
    x = 143,557,875.56/13,659.92
  6. Step 6: Final answer
    x = 10,509.42

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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.