Home / 19,158.12-28,754.56-9,804.60

Finding the Fourth Proportional to 19,158.12, 28,754.56 and 9,804.60

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Solution

The fourth proportional to 19,158.12, 28,754.56 and 9,804.60 is: 14,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.12 : 28,754.56 = 9,804.60 : x
  2. Step 2: Convert to fraction form
    19,158.12/28,754.56 = 9,804.60/x
  3. Step 3: Cross multiply
    19,158.12x = 28,754.56 × 9,804.60
  4. Step 4: Simplify right side
    19,158.12x = 281,926,958.98
  5. Step 5: Solve for x
    x = 281,926,958.98/19,158.12
  6. Step 6: Final answer
    x = 14,715.79

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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.