Home / 13,557.18-20,338.96-4,323.18

Finding the Fourth Proportional to 13,557.18, 20,338.96 and 4,323.18

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Solution

The fourth proportional to 13,557.18, 20,338.96 and 4,323.18 is: 6,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.18 : 20,338.96 = 4,323.18 : x
  2. Step 2: Convert to fraction form
    13,557.18/20,338.96 = 4,323.18/x
  3. Step 3: Cross multiply
    13,557.18x = 20,338.96 × 4,323.18
  4. Step 4: Simplify right side
    13,557.18x = 87,928,985.09
  5. Step 5: Solve for x
    x = 87,928,985.09/13,557.18
  6. Step 6: Final answer
    x = 6,485.79

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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.