Home / 13,557.28-18,709.20-7,589.52

Finding the Fourth Proportional to 13,557.28, 18,709.20 and 7,589.52

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Solution

The fourth proportional to 13,557.28, 18,709.20 and 7,589.52 is: 10,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.28 : 18,709.20 = 7,589.52 : x
  2. Step 2: Convert to fraction form
    13,557.28/18,709.20 = 7,589.52/x
  3. Step 3: Cross multiply
    13,557.28x = 18,709.20 × 7,589.52
  4. Step 4: Simplify right side
    13,557.28x = 141,993,847.58
  5. Step 5: Solve for x
    x = 141,993,847.58/13,557.28
  6. Step 6: Final answer
    x = 10,473.62

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1.5x scale

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.