Home / 13,699.92-20,509.56-10,426.32

Finding the Fourth Proportional to 13,699.92, 20,509.56 and 10,426.32

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Solution

The fourth proportional to 13,699.92, 20,509.56 and 10,426.32 is: 15,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.92 : 20,509.56 = 10,426.32 : x
  2. Step 2: Convert to fraction form
    13,699.92/20,509.56 = 10,426.32/x
  3. Step 3: Cross multiply
    13,699.92x = 20,509.56 × 10,426.32
  4. Step 4: Simplify right side
    13,699.92x = 213,839,235.62
  5. Step 5: Solve for x
    x = 213,839,235.62/13,699.92
  6. Step 6: Final answer
    x = 15,608.79

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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.