Home / 19,188.72-28,795.33-9,322.62

Finding the Fourth Proportional to 19,188.72, 28,795.33 and 9,322.62

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Solution

The fourth proportional to 19,188.72, 28,795.33 and 9,322.62 is: 13,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.72 : 28,795.33 = 9,322.62 : x
  2. Step 2: Convert to fraction form
    19,188.72/28,795.33 = 9,322.62/x
  3. Step 3: Cross multiply
    19,188.72x = 28,795.33 × 9,322.62
  4. Step 4: Simplify right side
    19,188.72x = 268,447,919.36
  5. Step 5: Solve for x
    x = 268,447,919.36/19,188.72
  6. Step 6: Final answer
    x = 13,989.88

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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.