Home / 9,431.38-14,147.80-2,858.10

Finding the Fourth Proportional to 9,431.38, 14,147.80 and 2,858.10

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Solution

The fourth proportional to 9,431.38, 14,147.80 and 2,858.10 is: 4,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.38 : 14,147.80 = 2,858.10 : x
  2. Step 2: Convert to fraction form
    9,431.38/14,147.80 = 2,858.10/x
  3. Step 3: Cross multiply
    9,431.38x = 14,147.80 × 2,858.10
  4. Step 4: Simplify right side
    9,431.38x = 40,435,827.18
  5. Step 5: Solve for x
    x = 40,435,827.18/9,431.38
  6. Step 6: Final answer
    x = 4,287.37

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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.