Home / 19,280.67-28,900.89-9,406.38

Finding the Fourth Proportional to 19,280.67, 28,900.89 and 9,406.38

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Solution

The fourth proportional to 19,280.67, 28,900.89 and 9,406.38 is: 14,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.67 : 28,900.89 = 9,406.38 : x
  2. Step 2: Convert to fraction form
    19,280.67/28,900.89 = 9,406.38/x
  3. Step 3: Cross multiply
    19,280.67x = 28,900.89 × 9,406.38
  4. Step 4: Simplify right side
    19,280.67x = 271,852,753.68
  5. Step 5: Solve for x
    x = 271,852,753.68/19,280.67
  6. Step 6: Final answer
    x = 14,099.76

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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.